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En los análisis, presentaba ligero aumento de la cortisoluria (284.5 mcgr./24h.) y de 17-OH-esteroides en orina (12.7 mcg./24h.), sin síntomas de hipercortisolismo sistémico. Se realizó resección completa de la tumoración, con el diagnóstico histológico de carcinoma suprarrenal de 10 x 7 x 5 cmts. (215 grs.) bien encapsulado, aunque con invasión vascular, amplias zonas de necrosis y un índice mitótico de 5.8/50; el estudio histoquímico fue (+) para Vimentina y (-) para Citoqueratina, EMA, Cromogranina y Sm- 100. Se etiquetó como Estadio II y Grado II. Treinta meses después, la paciente presentó en los estudios radiológicos de seguimiento una masa en el lecho de resección previo de 7 cmts., en contacto con el hilio renal izquierdo y técnicamente resecable; se reintervino y se llevó a cabo una resección de la recidiva asociada a nefrectomía izquierda, esplenectomía y pancreatectomía distal (radical completa y con márgenes libres). Posteriormente, recibió tratamiento quimioterápico sistémico adyuvante con 6 ciclos completos de cisplatino (CDDP) y etopósido (VP-16) en régimen adyuvante.\n Cuatro años y once meses tras el tratamiento inicial, se detecta en el seguimiento radiológico la presencia de varios nódulos hepáticos sugerentes de metástasis. Se sometió de nuevo a cirugía abdominal realizándose, previo control con ecografía hepática intraoperatoria, una bisegmentectomía IV-B y V y una resección limitada del segmento VIII; el análisis de anatomía-patológica informó de la presencia de 7 nódulos (de tamaño variable entre 0.5 y 1.5 cmts.) compatibles con metástasis de carcinoma suprarrenal.\n Diez meses después, se detecta una nueva recidiva tumoral a nivel subdiafragmático izquierdo (de 6 x 4 cmts. según la TAC) y en la raiz del mesenterio, esta última de 4 x 3 cmts. y localizada a nivel de la salida de la arteria mesentérica superior (AMS). Dada la difícil resecabilidad de la nueva recidiva se decide tratamiento quimioterápico con intención neoadyuvante ( 5 ciclos completos de CDDP y VP-16), decidiéndose por regresión parcial de las lesiones una nueva exploración quirúrgica. Se realizó la resección de las dos masas tumorales, la primera incluyendo el pilar izquierdo del diafragma y una pastilla de 5 cmts. de dicho músculo, y la segunda disecando en su origen el tronco celíaco y la AMS y resecando todo el tejido tumoral entre ambos vasos. La anatomía patológica confirmó la recidiva, estando los bordes de resección no afectos. 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Presenta episodios de hematuria monosintomática autolimitada y urinocultivos negativos. En estudio ecográfico se observa ureteropielocaliectasia grado II de riñón derecho y en U.I.V. se objetiva anulación funcional de riñón derecho, motivo por el cuál, se practica nefrostomia percutánea derecha, que confirma el hallazgo urográfico. Ocho meses antes, est:udio ecográfico y U.I.V. sin hallazgos patológicos.\n \n Entre sus antecedentes personales cabe destacar: sin alergias conocidas. HTA. Diabetes Mellitus tipo II. Miocardiopatía hipertrófica. Aneurisma carotídeo intracerebral sin secuelas.\n La exploración física practicada es la siguiente: Abdomen blando y depresible, no doloroso, no megalias, Fosas renales libres indoloras. Genitales externos sin signos patológicos. Tacto rectal compatible con HBP grado I-II. Se llevan a cabo las siguientes EXPLORACIONES COMPLEMENTARIAS:\n ANALISIS: Glucemia 145 mg/dl, Creatinina 1.4 mg/dl. Resto de parámetros dentro de la normalidad.\n CITOLOGIA URINARIA: Compatible con carcinoma de células transicionales de bajo grado.\n PIELOGRAFIA DESCENDENTE a traves de Nefrostomia: Defecto de replección a nivel de uréter sacro-ilíaco derecho de aproximadamente 20 mm de longitud, con signos de infiltración de la pared.\n \n ESTUDIO FUNCIONAL DE RIÑON DERECHO: Aclaramiento de Creatinina inferior a 5 ml/minuto.\n TAC ABDOMINO-PELVICO: Aneurisma de Aorta infrarrenal. Atrofia hidronefrótica de riñón derecho, sin visualizarse imágenes endoluminales intraureterales. Dudosas adenopatías paravesicales.\n Ante estos hallazgos y la sospecha de tumor de vías de uréter derecho, el paciente es intervenido quirúrgicamente practicándose nefroureterectomía radical derecha con evolución postoperatoria satisfactoria. El dictamen histopatológico de la pieza nos informa de pielonefritis crónica y cambios de arteriosclerosis, así como lesión inflamatoria ureteral que oblitera la luz con infiltrado de linfocitos en capas musculares, erosión de urotelio y presencia de Actinomices. Tras 9 años de seguimiento, el paciente mantiene una función renal aceptable (Creatinina sérica 2.1 mg/dl ) y es controlado por HBP sintomática.\n", "section_annotation": { "gold": [ { "end_offset": 175, "label": "PRESENT_ILLNESS", "segment": "Varón de 66 años controlado en Consultas Externas por hipertrofia benigna de próstata. Presenta episodios de hematuria monosintomática autolimitada y urinocultivos negativos. 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pararrenal secundario a rotura del riñón izquierdo que contenía cálculo coraliforme y ureteroscopia derecha por cálculo en uréter pelviano derecho en febrero de 1990.Hígado graso en control por Servicio de Digestivo, HTA, hipertrigliceridemia, sobrepeso y gota.\n Trasplante de riñón derecho en fosa ilíaca derecha sin incidencias (también arteria renal doble con parche único y anastomosis vasculares a ilíacas externas, implante de uréter a vejiga tipo Paquin). La paciente presentó en el día +5 del trasplante rechazo agudo siendo tratada con pulses de 6-Metil-Prednisolona (400mg/día, 3 días) y fue dada de alta con niveles de creatinina de 2'3 que progresivamente descenderán y se mantendrán hasta la actualidad entre 0'8-1'1. Al alta la paciente seguía tratamiento inmunosupresor también con ciclosporina 8mg/Kg, micofenolato mofetilo 2gr/día y prednisona 1mg/Kg.\n En abril de1999, 6 meses después del trasplante, la paciente refiere cuadro de temblor en ambas manos que inicialmente es atribuído a toxicidad de ciclosporina y se comenzó descenso de la pauta de corticoides. Sin embargo, ante el empeoramiento del cuadro, tras un año asintomática, se inició estudio por el Servicio de Neurología. En ese momento, al año y medio del trasplante (marzo de 2000) la paciente presentaba inestabilidad de la marcha, temblores y parestesias en miembros inferiores. En la exploración física se objetivaron moderados signos piramidales en ambas EEII, más acusados en eI izquierdo, sin claro déficit motor; la sensibilidad profunda estaba también levemente alterada. Las pruebas complementarias ayudaron a esclarecer el diagnóstico:\n En la RMN se observaron 2 lesiones compatibles con mielitis a nivel cervical C2-C4 y dorsal alto D1.\n Los potenciales evocados demostraron retraso significativo en la latencia del nervio tibial.\n LCR: leve pleocitosis linfocítica, aumento de la concentración de proteínas y presencia de bandas IgG oligoclonales.\n Pruebas serológicas, ELISA y Western Blot, resultaron positivas para HTLV-I en LCR y sangre.\n PCR en sangre positiva también para el virus detectándose también en este caso carga viral elevada.\n La paciente fue tratada con pulses de 6-Metil-Prednisolona en el momento de agudización del proceso y pauta descendente progresivamente de corticoides. Sin embargo, además de hábito cushingoide, la paciente presenta pérdida de audición progresiva, incontinencia de orina de predominio nocturno que ha mejorado con Tolterodina (pendiente de estudio urodinámico en el momento actual) y evoluciona hacia discreta invalidez.\n", "section_annotation": { "gold": [ { "end_offset": 157, "label": "PRESENT_ILLNESS", "segment": "Mujer de 51 años, monorrena derecha, incluída en programa de hemodiálisis 9 meses previos al trasplante por IRC secundaria a pielonefritis crónica derecha.\n ", "start_offset": 0 }, { "end_offset": 1418, "label": "PAST_MEDICAL_HISTORY", "segment": "Antecedentes personales: nefrectomía izquierda por absceso pararrenal secundario a rotura del riñón izquierdo que contenía cálculo coraliforme y ureteroscopia derecha por cálculo en uréter pelviano derecho en febrero de 1990.Hígado graso en control por Servicio de Digestivo, HTA, hipertrigliceridemia, sobrepeso y gota.\n Trasplante de riñón derecho en fosa ilíaca derecha sin incidencias (también arteria renal doble con parche único y anastomosis vasculares a ilíacas externas, implante de uréter a vejiga tipo Paquin). 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A su vez, el dolor se acompaña de nauseas y vómitos. La paciente presentó picos febriles con sudoración profusa aunque en le momento en el que acude a Urgencias se encuentra afebril y no presenta síndrome miccional.\n A la exploración presenta: soplo protomesosistólico en ápex, abdomen blando y depresible, doloroso a la palpación en fosa iliaca y flanco derechos. También destaca dolor espontáneo en cara anterior del muslo derecho que aumenta con la presión y con la movilidad de la extremidad.\n En la analítica de Urgencias destaca leucocitosis con desviación izquierda (17.200 leucocitos con 84% de neutrófilos), 567.000 plaquetas, urea 1.35, creatinina 1.80.\n Como pruebas de imagen se solicitan Rx. de vías urinarias y ecografía en las que se observa imagen cálcica en silueta renal derecha y ectasia pielocalicial derecha respectivamente.\n Con el diagnostico de cólico nefrítico derecho complicado se decide ingreso para derivación urinaria y tratamiento antibiótico intravenoso. Se coloca en quirófano catéter externo en uréter derecho con salida de abundante orina limpia.\n A lo largo de los días el dolor cólico va cediendo aunque la paciente refiere dolor sordo en fosa lumbar y continúa con el dolor en muslo derecho. Es valorada por el servicio de Traumatología pautando tratamiento antiinflamatorio ante la sospecha de rotura fibrilar del cuadriceps.\n Debido a la persistencia del dolor lumbar se decide revisión ecográfica objetivándose una masa localizada en el músculo psoas derecho de 10 x 5.5 cm. por lo que se solicita un TAC. En la tomografía se confirma la presencia del absceso retroperitoneal en el compartimento del músculo psoas iliaco derecho a nivel de L2-L3 sin perder la continuidad hasta anillo inguinal y sin poder descartar la participación del uréter derecho en su tercio medio.\n Una vez confirmado el diagnóstico nos ponemos en contacto con el Servicio de Radiología Intervensionista para drenaje percutáneo. Mediante ecografía se coloca catéter 10 fr. evacuando 200 cc. material purulento, del cual se envía muestra microbiológica (en los días sucesivos se confirma la presencia de Bacteriodes fragilis y Streptococcus sanguis). El débito por el drenaje es progresivamente menor y se realiza nuevo estudio con TAC, evidenciándose la disminución del volumen del absceso. Se decide retirar el tubo de drenaje al quinto día de su colocación pero es necesario recolocación de catéter 14 fr. por empeoramiento clínico.\n Se desconoce la existencia de foco primario por lo que durante el ingreso, se solicita colonoscopia para intentar buscar un origen digestivo del problema. No es posible sobrepasar el ángulo esplénico por lo que no se halla un foco primario. Desde el punto de vista urológico tampoco se justifica la aparición del absceso.\n Se hace cavitograma para estudiar la morfología y el tamaño del absceso y se indica la realización de lavados con fibrinolíticos intracavitarios (100.000 unidades de urokinasa en 10 cc de suero fisiológico).\n Después de un mes y diez días de ingreso, la paciente es dada de alta ante la mejoría clínica del cuadro confirmada mediante técnicas de imagen. 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Con el diagnóstico de detrusor hiperactivo de causa neurogénica se inició tratamiento con anticolinérgicos, estando en la actualidad estable clínicamente con urgencia ocasional sin incontinencia.\n \n", "section_annotation": { "gold": [ { "end_offset": 20, "label": "PRESENT_ILLNESS", "segment": "Paciente de 51 años ", "start_offset": 0 }, { "end_offset": 172, "label": "PAST_MEDICAL_HISTORY", "segment": "diagnosticado 20 años antes de Neurolues, con secuelas establecidas tipo trastornos mnésicos visuales y verbales, así como radiculoneuropatía múltiple. ", "start_offset": 20 }, { "end_offset": 545, "label": "EXPLORATION", "segment": "En la radiología de tórax presentaba elongación aórtica sin repercusión clínica. Se realizó electroencefalograma con trazado normal, y en el TC craneal con y sin contraste mostró una morfología cerebral dentro de límites normales. La serología para Lues en los test RPR y TPHA fueron positivos. 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Se le realiza ultrasonido donde se observa un doble sistema pieloureteral derecho con litiasis de 6 mm en cáliz medio, doble sistema pieloureteral izquierdo. En la urografía excretora se confirma la presencia de la litiasis renal derecha, con doble sistema pieloureteral derecho e hidronefrosis derecha, en el riñón izquierdo se observan tres sistemas ureteropielocaliciales. Con el objetivo de poder visualizar la desembocadura de los uréteres en la vejiga realizamos urografía excretora por venoclisis donde se confirma en riñón izquierdo los tres sistemas ureteropielocaliciales y los tres uréteres desembocando independientes en la vejiga. También se realizó TAC donde se confirmó el triple sistema ureteropielocalicial del riñón izquierdo con entrada independiente de los uréteres en vejiga. En la cistoscopia se observaron tres meatos ureterales del lado izquierdo, uno de ellos por delante del trígono, cerca del cuello, otro en el trígono y el último por encima del mismo, del lado derecho se observaron dos meatos ureterales. Todos eyaculando orinas claras y con el aspecto de 'hoyo de golf'.\n \n", "section_annotation": { "gold": [ { "end_offset": 89, "label": "PRESENT_ILLNESS", "segment": "Paciente femenina, de 27 años de edad, blanca, que ingresa por cólico nefrítico derecho. ", "start_offset": 0 }, { "end_offset": 1193, "label": "EXPLORATION", "segment": "Se le realiza ultrasonido donde se observa un doble sistema pieloureteral derecho con litiasis de 6 mm en cáliz medio, doble sistema pieloureteral izquierdo. En la urografía excretora se confirma la presencia de la litiasis renal derecha, con doble sistema pieloureteral derecho e hidronefrosis derecha, en el riñón izquierdo se observan tres sistemas ureteropielocaliciales. Con el objetivo de poder visualizar la desembocadura de los uréteres en la vejiga realizamos urografía excretora por venoclisis donde se confirma en riñón izquierdo los tres sistemas ureteropielocaliciales y los tres uréteres desembocando independientes en la vejiga. También se realizó TAC donde se confirmó el triple sistema ureteropielocalicial del riñón izquierdo con entrada independiente de los uréteres en vejiga. En la cistoscopia se observaron tres meatos ureterales del lado izquierdo, uno de ellos por delante del trígono, cerca del cuello, otro en el trígono y el último por encima del mismo, del lado derecho se observaron dos meatos ureterales. Todos eyaculando orinas claras y con el aspecto de 'hoyo de golf'.\n \n", "start_offset": 89 } ] } }
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Acude al urólogo por dolor sordo en ingle izquierda y aumento de tamaño de testículo izquierdo de varias semanas de evolución. A la exploración, se objetiva un testículo izquierdo muy aumentado de tamaño en su totalidad, irregular e indurado sugestivo de tumor testicular con resto de exploración normal.\n Se realiza una ecografía testicular que se describe como un nódulo quístico con tabiques finos y un granuloma con calcificaciones intratesticular y fuera del testículo a nivel de polo inferior otro quiste con múltiples ecos en su interior a descartar quiste epidermoide o hidatídico. Los marcadores tumorales alfa fetoproteína y BHCG se encontraban dentro de parámetros normales. En el TAC solicitado durante el ingreso del paciente se evidenciaba una tumoración sólida retroperitoneal izquierda a nivel del hilio renal lateroaórtica y prerrenal de 54x51x90 mm de diámetro. \n \n Se llevó a cabo una orquiectomía inguinal izquierda con resultado anatomo-patológico de teratoma maduro puro poco diferenciado limitado a testículo sin invasión vascular que afectaba a túnica albugínea pero no a vaginal, sin afectación de rete testis de 5x3x3 mm. de tamaño. El paciente es remitido a nuestro hospital para valoración de tratamiento adyuvante.\n Nos encontramos ante un tumor testicular no seminomatoso estadio pT2 N3, M0 según la clasificación TNM y en estadio II c sin factores de mal pronóstico. En esta situación se plantean dos opciones, comenzar con quimioterapia y plantear resección si persistía masa residual o realizar una linfadenectomia retroperitoneal.\n Dada la negatividad de los marcadores tumorales y la anatomía patológica de la pieza testicular y la conocida quimioresistencia del teratoma maduro puro se decidió la realización de linfadenectomía retroperitoneal por las posibilidades de ser curativa si la histología era coincidente con el primario sin existir otros componentes tumorales no seminomatosos.\n Se realizó linfadenectomía retroperitoneal hasta vasos iliacos obteniendo la pieza observada en Figura 2. El resultado anatomo-patológico fue de teratoma maduro puro con los componentes de las tres capas embrionarias sin invasión linfovascular. EL paciente sigue en la actualidad vigilancia en consulta mediante marcadores, TAC abdominal y radiografía de tórax periódicas.\n \n", "section_annotation": { "gold": [ { "end_offset": 17, "label": "PRESENT_ILLNESS", "segment": "Varón de 23 años ", "start_offset": 0 }, { "end_offset": 123, "label": "PAST_MEDICAL_HISTORY", "segment": "intervenido en dos ocasiones en la infancia por hipospadias con correcta evolución y micción confortable. ", "start_offset": 17 }, { "end_offset": 250, "label": "PRESENT_ILLNESS", "segment": "Acude al urólogo por dolor sordo en ingle izquierda y aumento de tamaño de testículo izquierdo de varias semanas de evolución. ", "start_offset": 123 }, { "end_offset": 1007, "label": "EXPLORATION", "segment": "A la exploración, se objetiva un testículo izquierdo muy aumentado de tamaño en su totalidad, irregular e indurado sugestivo de tumor testicular con resto de exploración normal.\n Se realiza una ecografía testicular que se describe como un nódulo quístico con tabiques finos y un granuloma con calcificaciones intratesticular y fuera del testículo a nivel de polo inferior otro quiste con múltiples ecos en su interior a descartar quiste epidermoide o hidatídico. Los marcadores tumorales alfa fetoproteína y BHCG se encontraban dentro de parámetros normales. En el TAC solicitado durante el ingreso del paciente se evidenciaba una tumoración sólida retroperitoneal izquierda a nivel del hilio renal lateroaórtica y prerrenal de 54x51x90 mm de diámetro. \n \n ", "start_offset": 250 }, { "end_offset": 1282, "label": "TREATMENT", "segment": "Se llevó a cabo una orquiectomía inguinal izquierda con resultado anatomo-patológico de teratoma maduro puro poco diferenciado limitado a testículo sin invasión vascular que afectaba a túnica albugínea pero no a vaginal, sin afectación de rete testis de 5x3x3 mm. de tamaño. ", "start_offset": 1007 }, { "end_offset": 1368, "label": "DERIVED_FROM/TO", "segment": "El paciente es remitido a nuestro hospital para valoración de tratamiento adyuvante.\n ", "start_offset": 1282 }, { "end_offset": 1521, "label": "EXPLORATION", "segment": "Nos encontramos ante un tumor testicular no seminomatoso estadio pT2 N3, M0 según la clasificación TNM y en estadio II c sin factores de mal pronóstico. ", "start_offset": 1368 }, { "end_offset": 2155, "label": "TREATMENT", "segment": "En esta situación se plantean dos opciones, comenzar con quimioterapia y plantear resección si persistía masa residual o realizar una linfadenectomia retroperitoneal.\n Dada la negatividad de los marcadores tumorales y la anatomía patológica de la pieza testicular y la conocida quimioresistencia del teratoma maduro puro se decidió la realización de linfadenectomía retroperitoneal por las posibilidades de ser curativa si la histología era coincidente con el primario sin existir otros componentes tumorales no seminomatosos.\n Se realizó linfadenectomía retroperitoneal hasta vasos iliacos obteniendo la pieza observada en Figura 2. ", "start_offset": 1521 }, { "end_offset": 2294, "label": "EXPLORATION", "segment": "El resultado anatomo-patológico fue de teratoma maduro puro con los componentes de las tres capas embrionarias sin invasión linfovascular. ", "start_offset": 2155 }, { "end_offset": 2424, "label": "EVOLUTION", "segment": "EL paciente sigue en la actualidad vigilancia en consulta mediante marcadores, TAC abdominal y radiografía de tórax periódicas.\n \n", "start_offset": 2294 } ] } }
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Acude a consulta de Urología por presentar sonda vesical permanente desde hace aproximadamente 5 meses debido a RAO, fracasando los intentos de retirar la misma, al examen físico se constata mucosas: húmedas y normocoloreadas, tejido celular subcutáneo no infiltrado, auscultación cardiorespiratoria normal, abdomen negativo, fosas lumbares libres, puntos pielorreno-ureterales no dolorosos, genitales externos y regiones inguinales normales, al tacto rectal se palpa una próstata aumentada de volumen, superficie regular, bien delimitada, consistencia fibroadenomatosa, grado III, compatible con una hiperplasia benigna de próstata (HBP). Analítica sanguínea cifras de hemoglobina, hematocrito, leucocitos totales, urea creatinina, PSA y fosfatasa alcalina, fueron normales. Ecográfícamente llamó la atención el aumento de volumen prostático con ecogenicidad heterogénea.\n Dado el cuadro clínico y los antecedentes, se decide tratamiento quirúrgico, realizándosele una prostatectomía retropúbica. En el informe anatomopatológico de la pieza quirúrgica se describe un fragmento de próstata en el que se observa un infiltrado linfocitario monomorfo, que se corresponde con un linfoma linfocítico bien diferenciado. Posteriormente es remitido al servicio de Oncología donde la aplican tratamiento radioterapia. Actualmente continúa seguimiento en consulta de Urología.\n \n", "section_annotation": { "gold": [ { "end_offset": 21, "label": "PRESENT_ILLNESS", "segment": "Paciente de 70 años, ", "start_offset": 0 }, { "end_offset": 397, "label": "PAST_MEDICAL_HISTORY", "segment": "blanco, antecedentes de hipertensión arterial, llevando tratamiento con enalapril 10 mg/día, así como un cuadro de prostatismo caracterizado por polaquiuria nocturna (3-4 veces en la noche), disuria, chorro débil, micción demorada, micciones imperiosas, desde hace aproximadamente 1 año, no mejorando con el tratamiento impuesto por su médico de cabecera y llegando a la RAO. ", "start_offset": 21 }, { "end_offset": 559, "label": "PRESENT_ILLNESS", "segment": "Acude a consulta de Urología por presentar sonda vesical permanente desde hace aproximadamente 5 meses debido a RAO, fracasando los intentos de retirar la misma, ", "start_offset": 397 }, { "end_offset": 1271, "label": "EXPLORATION", "segment": "al examen físico se constata mucosas: húmedas y normocoloreadas, tejido celular subcutáneo no infiltrado, auscultación cardiorespiratoria normal, abdomen negativo, fosas lumbares libres, puntos pielorreno-ureterales no dolorosos, genitales externos y regiones inguinales normales, al tacto rectal se palpa una próstata aumentada de volumen, superficie regular, bien delimitada, consistencia fibroadenomatosa, grado III, compatible con una hiperplasia benigna de próstata (HBP). Analítica sanguínea cifras de hemoglobina, hematocrito, leucocitos totales, urea creatinina, PSA y fosfatasa alcalina, fueron normales. Ecográfícamente llamó la atención el aumento de volumen prostático con ecogenicidad heterogénea.\n ", "start_offset": 559 }, { "end_offset": 1395, "label": "TREATMENT", "segment": "Dado el cuadro clínico y los antecedentes, se decide tratamiento quirúrgico, realizándosele una prostatectomía retropúbica. ", "start_offset": 1271 }, { "end_offset": 1611, "label": "EXPLORATION", "segment": "En el informe anatomopatológico de la pieza quirúrgica se describe un fragmento de próstata en el que se observa un infiltrado linfocitario monomorfo, que se corresponde con un linfoma linfocítico bien diferenciado. ", "start_offset": 1395 }, { "end_offset": 1706, "label": "TREATMENT", "segment": "Posteriormente es remitido al servicio de Oncología donde la aplican tratamiento radioterapia. ", "start_offset": 1611 }, { "end_offset": 1766, "label": "EVOLUTION", "segment": "Actualmente continúa seguimiento en consulta de Urología.\n \n", "start_offset": 1706 } ] } }
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En la exploración física el testículo derecho parecía situarse hacia la raíz escrotal, se apreciaba una masa móvil de consistencia elástica y suave de unos 15 cm que ocupaba todo el hemiescroto. El diagnóstico clínico fue de lipoma escrotal.\n Los exámenes de sangre y de orina, la radiografía de tórax y el electrocardiograma fueron todos normales. No se realizó la ecografía escrotal y se decidió la intervención.\n Durante la operación, en primer lugar, se procedió a la reparación de la hernia inguinal izquierda con malla de prolene y después se realizó la exploración del hemiescroto derecho.\n A través de una primera incisión cutánea escrotal derecha intentamos aislar una voluminosa masa blanquecina. Sin embargo, por la dificultad que teníamos en separar la neoformación de los tejidos circundantes y encontrar el testículo derecho, que estaba envuelto por la masa, decidimos eligir otra vía.\n Se realizó una segunda incisión inguinoescrotál a través de la cual, mediante disección roma fue más fácil aislar la neoformación, que se extendía superiormente hasta la altura del anillo inguinal externo. Una vez que fue aislado el cordón espermático conseguimos traer fuera el testículo, que tenía aspecto hipotrófico pero no resultaba afectado. También la resección de la masa resultaba más facil y segura. Los márgenes de la lesión estaban bien delimitados y fáciles de separarse a excepción de una zona del fondo de la bolsa escrotal, donde la neoformación tenía más adherencia con el dartos.\n El aspecto macroscópico de la neoformación extirpada era el de una masa de forma alongada de 15 x 7 x 5cm y peso de 140 gr aparentemente encapsulada con superficie externa lisa y regular. Al corte la superficie se presentaba uniforme, de aspecto denso y fibroso, de color blanquecino y de consistencia elástica sin evidencia de degeneración mixoide o necrosis.\n \n El examen microscópico demostró una tumoración constituida por grupos de células fusiformes, onduladas e hipercrómicas, estrechamente interpuestas en haces de fibras de colágeno. Con la inmunohistoquímica se evidenciaba positividad citoplásmica para la proteína S-100. No se documentaron signos de necrosis, mitosis ni atipias nucleares. El diagnóstico histopatológico definitivo fue el de neurofibroma.\n \n Un año después de la intervención no se han revelado signos objetivos de recidiva.\n \n", "section_annotation": { "gold": [ { "end_offset": 21, "label": "PRESENT_ILLNESS", "segment": "Paciente varón de 61 ", "start_offset": 0 }, { "end_offset": 55, "label": "PAST_MEDICAL_HISTORY", "segment": "años sin antecedentes patológicos ", "start_offset": 21 }, { "end_offset": 265, "label": "PRESENT_ILLNESS", "segment": "acudió a nuestro servicio por presentar tumoración escrotal derecha aparecida desde hace unos tres años, que ha ido creciendo de tamaño muy lentamente sin dolor y por la presencia de hernia inguinal izquierda. ", "start_offset": 55 }, { "end_offset": 650, "label": "EXPLORATION", "segment": "En la exploración física el testículo derecho parecía situarse hacia la raíz escrotal, se apreciaba una masa móvil de consistencia elástica y suave de unos 15 cm que ocupaba todo el hemiescroto. El diagnóstico clínico fue de lipoma escrotal.\n Los exámenes de sangre y de orina, la radiografía de tórax y el electrocardiograma fueron todos normales. No se realizó la ecografía escrotal ", "start_offset": 265 }, { "end_offset": 1765, "label": "TREATMENT", "segment": "y se decidió la intervención.\n Durante la operación, en primer lugar, se procedió a la reparación de la hernia inguinal izquierda con malla de prolene y después se realizó la exploración del hemiescroto derecho.\n A través de una primera incisión cutánea escrotal derecha intentamos aislar una voluminosa masa blanquecina. Sin embargo, por la dificultad que teníamos en separar la neoformación de los tejidos circundantes y encontrar el testículo derecho, que estaba envuelto por la masa, decidimos eligir otra vía.\n Se realizó una segunda incisión inguinoescrotál a través de la cual, mediante disección roma fue más fácil aislar la neoformación, que se extendía superiormente hasta la altura del anillo inguinal externo. Una vez que fue aislado el cordón espermático conseguimos traer fuera el testículo, que tenía aspecto hipotrófico pero no resultaba afectado. También la resección de la masa resultaba más facil y segura. Los márgenes de la lesión estaban bien delimitados y fáciles de separarse a excepción de una zona del fondo de la bolsa escrotal, donde la neoformación tenía más adherencia con el dartos.\n ", "start_offset": 650 }, { "end_offset": 2536, "label": "EXPLORATION", "segment": "El aspecto macroscópico de la neoformación extirpada era el de una masa de forma alongada de 15 x 7 x 5cm y peso de 140 gr aparentemente encapsulada con superficie externa lisa y regular. Al corte la superficie se presentaba uniforme, de aspecto denso y fibroso, de color blanquecino y de consistencia elástica sin evidencia de degeneración mixoide o necrosis.\n \n El examen microscópico demostró una tumoración constituida por grupos de células fusiformes, onduladas e hipercrómicas, estrechamente interpuestas en haces de fibras de colágeno. Con la inmunohistoquímica se evidenciaba positividad citoplásmica para la proteína S-100. No se documentaron signos de necrosis, mitosis ni atipias nucleares. El diagnóstico histopatológico definitivo fue el de neurofibroma.\n \n ", "start_offset": 1765 }, { "end_offset": 2621, "label": "EVOLUTION", "segment": "Un año después de la intervención no se han revelado signos objetivos de recidiva.\n \n", "start_offset": 2536 } ] } }
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Desde hace un año y medio presenta sintomatología de síndrome prostático. Estudiado por el Servicio de Urología, se le diagnostica una hipertrofia benigna de próstata. El examen preoperatorio no presentaba alteraciones (electrocardiograma, hemograma y bioquímica normales). Se programa para RTU. No se realizo premedicación. La anestesia intrarraquídea se realiza con el paciente en sedestación. Antes de la inducción anestésica se monitorizo un electrocardiograma continuo (ECG), una presión arterial (PA) no invasiva y la SpO2. La intervención tuvo duración de 60 minutos y transcurrio sin incidencias. Durante la misma se administraron 3,5 litros de agua estéril (hipotónica) como liquido de irrigación, contabilizandose un balance negativo de 1500ml. En la sala de despertar presento vómitos e hipotensión (100/60mmHg). No se objetivaron alteraciones neurológicas, ni cardiovasculares, ni edema pulmonar. ECG y Rx torax sin alteraciones. En la bioquímica sanguínea destacaba: sodio : 122 mEq/L, potasio : 5,9 mmol/L, osmolaridad : 256 mOsmol/kg, urea : 1,5 g/L, creatinina (cr.s) : 38 mg/L, calcio : 80 mg/L, proteínas totales : 51 g/L, albúmina : 28 g/L, CPK : 225 U/L, LDH : 416 U/L, GOT : 48 U/L, GPT : 97 U/L, haptoglobina : 43.8 mg/dL (rango normal 50-220 mg/dL), las pruebas de coagulación salieron normales, Hb : 10 g/dl, HCT : 28.8 %, leucocitos : 6400/mm3, plaquetas : 220.000/mm3. Gasometría: pH : 7,30; PCO2 : 36 mmHg; PO2 : 72 mmHg. Se procede a su ingreso en la unidad de Reanimación.\n Tras la estabilización clínica con normalización de la tensión arterial, se pudo prescindir de las drogas vasopresoras, se administraron Furosemida IV y suero salino hipertónico al 3% para minimizar la sobrecarga de volumen. A pesar de las medidas aplicadas persistia con insuficiencia renal aguda oligúrica durante 15 días, llegando a cifras máximas de urea de 2,70 g/L y de creatinina de 72 mg/L, precisando de 04 sesiones de hemodiálisis. A las 3 semanas, reinició la diuresis entrando en fase poliúrica, recuperandose así progresivamente la función renal, siendo la Cr.s. al alta de 14 mg/L. A los 4 meses el paciente permanece normotenso, con cifras de Cr.s. 10 mg/L y un Ccr. 76 ml/minuto.\n \n", "section_annotation": { "gold": [ { "end_offset": 32, "label": "PRESENT_ILLNESS", "segment": "Varón de 65 años, 70 kg de peso ", "start_offset": 0 }, { "end_offset": 60, "label": "PAST_MEDICAL_HISTORY", "segment": "sin antecedentes de interés ", "start_offset": 32 }, { "end_offset": 279, "label": "PRESENT_ILLNESS", "segment": "que acudió a nuestro hospital por RTU de próstata. Desde hace un año y medio presenta sintomatología de síndrome prostático. Estudiado por el Servicio de Urología, se le diagnostica una hipertrofia benigna de próstata. ", "start_offset": 60 }, { "end_offset": 385, "label": "EXPLORATION", "segment": "El examen preoperatorio no presentaba alteraciones (electrocardiograma, hemograma y bioquímica normales). ", "start_offset": 279 }, { "end_offset": 507, "label": "TREATMENT", "segment": "Se programa para RTU. No se realizo premedicación. La anestesia intrarraquídea se realiza con el paciente en sedestación. ", "start_offset": 385 }, { "end_offset": 641, "label": "EXPLORATION", "segment": "Antes de la inducción anestésica se monitorizo un electrocardiograma continuo (ECG), una presión arterial (PA) no invasiva y la SpO2. ", "start_offset": 507 }, { "end_offset": 866, "label": "TREATMENT", "segment": "La intervención tuvo duración de 60 minutos y transcurrio sin incidencias. Durante la misma se administraron 3,5 litros de agua estéril (hipotónica) como liquido de irrigación, contabilizandose un balance negativo de 1500ml. ", "start_offset": 641 }, { "end_offset": 935, "label": "EVOLUTION", "segment": "En la sala de despertar presento vómitos e hipotensión (100/60mmHg). ", "start_offset": 866 }, { "end_offset": 1560, "label": "TREATMENT", "segment": "No se objetivaron alteraciones neurológicas, ni cardiovasculares, ni edema pulmonar. ECG y Rx torax sin alteraciones. En la bioquímica sanguínea destacaba: sodio : 122 mEq/L, potasio : 5,9 mmol/L, osmolaridad : 256 mOsmol/kg, urea : 1,5 g/L, creatinina (cr.s) : 38 mg/L, calcio : 80 mg/L, proteínas totales : 51 g/L, albúmina : 28 g/L, CPK : 225 U/L, LDH : 416 U/L, GOT : 48 U/L, GPT : 97 U/L, haptoglobina : 43.8 mg/dL (rango normal 50-220 mg/dL), las pruebas de coagulación salieron normales, Hb : 10 g/dl, HCT : 28.8 %, leucocitos : 6400/mm3, plaquetas : 220.000/mm3. Gasometría: pH : 7,30; PCO2 : 36 mmHg; PO2 : 72 mmHg. ", "start_offset": 935 }, { "end_offset": 1614, "label": "EVOLUTION", "segment": "Se procede a su ingreso en la unidad de Reanimación.\n ", "start_offset": 1560 }, { "end_offset": 2210, "label": "TREATMENT", "segment": "Tras la estabilización clínica con normalización de la tensión arterial, se pudo prescindir de las drogas vasopresoras, se administraron Furosemida IV y suero salino hipertónico al 3% para minimizar la sobrecarga de volumen. A pesar de las medidas aplicadas persistia con insuficiencia renal aguda oligúrica durante 15 días, llegando a cifras máximas de urea de 2,70 g/L y de creatinina de 72 mg/L, precisando de 04 sesiones de hemodiálisis. A las 3 semanas, reinició la diuresis entrando en fase poliúrica, recuperandose así progresivamente la función renal, siendo la Cr.s. al alta de 14 mg/L. 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Para filiar la masa se realizó biopsia percutánea renal que puso de manifiesto la existencia de nefroblastoma. Se estadió como IV y conforme a ello se administraron según protocolo SIOP, 6 ciclos de poliquimioterapia sistémica con actinomicina D, vincristina y doxorrubicina separados 3 semanas. Al cabo de este período se constató la reducción de la masa renal y el evidente cambio de la densidad del nódulo hepático, no habiendo variado ni el tamaño ni la densidad de los ganglios regionales. Se sometió a nefrectomía radical dcha, linfadenectomía regional y exéresis de nódulo hepático. En riñón se reconfirmó la existencia de nefroblastoma con componente mixto, un tercio de blastema, y 2 tercios epiteliales, acompañados de un 60% de necrosis. Tras la nefrectomía continuó con ciclos de actinomicina D y vincristina, hasta que en estudio control aparece un nódulo pulmonar basal izdo, estudiado mediante PET, ofreciendo resultado positivo, y procediéndose a resección quirúrgica poniendo de manifiesto la existencia de componente nefroblastomatoso sin poder reconocer un claro patrón de crecimiento. Posteriormente y siguiendo las indicaciones de la SIOP se continuó con la poliquimioterapia sistémica asociando carboplatino y etopósido, hasta completar 26 semanas. En la actualidad a los 46 meses del diagnóstico inicial se encuentra libre de enfermedad.\n \n", "section_annotation": { "gold": [ { "end_offset": 308, "label": "PRESENT_ILLNESS", "segment": "Mujer de 33 años conocida desde enero de 2003, al acudir a nuestro Hospital por presentar una masa sólida dependiente de mesorriñón derecho de 8 cm de tamaño, acompañada de adenomegalias retrocavas y nódulo hepático sospechoso de metástasis, así como varios nódulos pulmonares bilaterales en campos basales. ", "start_offset": 0 }, { "end_offset": 419, "label": "EXPLORATION", "segment": "Para filiar la masa se realizó biopsia percutánea renal que puso de manifiesto la existencia de nefroblastoma. ", "start_offset": 308 }, { "end_offset": 604, "label": "TREATMENT", "segment": "Se estadió como IV y conforme a ello se administraron según protocolo SIOP, 6 ciclos de poliquimioterapia sistémica con actinomicina D, vincristina y doxorrubicina separados 3 semanas. 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Presentaba asimismo un nódulo tiroideo de 3 cm de diámetro, diagnosticado de bocio coloide nodular mediante PAAF en 1995.\n Fue intervenida en 2001, mediante nefrectomía radical derecha, por un tumor heterogéneo de 8 cm de diámetro localizado a nivel del tercio medio de riñón derecho, correspondiendo el estudio anatomopatológico posterior, a adenocarcinoma renal de alto grado, con infiltración de vena renal, estadio pT3bNoMo. Fue tratada posteriormente de forma coadyuvante con interleukina- 2 subcutánea durante 12 meses.\n \n El informe anatomopatológico macroscópico de la pieza describía una nódulo tumoral que infiltraba pelvis y vena renal, con un diámetro de 8 x 5 x 7 cm, combinando áreas grisáceas con otras pardoamarillentas. En el estudio microscópico se observó una tumoración pseudocapsular correspondiente a adenocarcinoma renal de alto grado, con alguna zona anaplásica. El tumor invadía el sistema pielocalicial y había evidencia de invasión vascular de la vena renal. Los márgenes quirúrgicos estaban libres.\n En el 2004 en estudio de control, se detectó mediante TAC, un marcado crecimiento del lóbulo tiroideo izquierdo, con la presencia de un nódulo de 4 cm heterogéneo, en relación con el nódulo coloide previo conocido. En el 2005, en un nuevo TAC, se observó en el mismo lóbulo tiroideo izquierdo, el crecimiento del nódulo hasta 5,6 cm desplazando la tráquea. La gammagrafía tiroidea mostraba un 'nódulo frío' en lóbulo izquierdo, mientras que la analítica sanguínea no demostró alteración en los niveles de hormonas tiroideas.\n \n Ante el crecimiento progresivo del nódulo se decidió realizar hemitiroidectomía izquierda. El informe anatomopatológico describía un hemitiroides izquierdo con un nódulo de 8 x 6 x 2 cm, con múltiples zonas amarillentas en superficie, alternando con otras de aspecto más carnoso. En el examen microscópico se observó una lesión constituida por células tumorales con citoplasma claro, las cuales presentaban una acusada atipia, con zonas incluso anaplásicas y la presencia de figuras de mitosis. Presentaban un crecimiento difuso constituyendo nódulos con zonas de esclerosis y extensas áreas de necrosis. La lesión se encontraba rodeada por tejido tiroideo respetado en el que se objetivaban folículos linfoides.\n Se realizaron técnicas de inmunohistoquímica en las cuales dichas células tumorales presentaron negatividad para la tiroglobulina y positividad para CK8, CK18, EMA, y Vimentina.\n Dadas las características histológicas del tumor y el perfil inmunohistoquímico, junto con la historia clínica del paciente, la lesión fue informada como metástasis de adenocarcinoma renal de células claras.\n \n", "section_annotation": { "gold": [ { "end_offset": 26, "label": "PRESENT_ILLNESS", "segment": "Mujer de 61 años de edad, ", "start_offset": 0 }, { "end_offset": 1560, "label": "PAST_MEDICAL_HISTORY", "segment": "con antecedentes de histerectomía más doble anexectomía por miomas uterinos en 1997, hernia de hiato, e hipertensión arterial en tratamiento médico. Presentaba asimismo un nódulo tiroideo de 3 cm de diámetro, diagnosticado de bocio coloide nodular mediante PAAF en 1995.\n Fue intervenida en 2001, mediante nefrectomía radical derecha, por un tumor heterogéneo de 8 cm de diámetro localizado a nivel del tercio medio de riñón derecho, correspondiendo el estudio anatomopatológico posterior, a adenocarcinoma renal de alto grado, con infiltración de vena renal, estadio pT3bNoMo. Fue tratada posteriormente de forma coadyuvante con interleukina- 2 subcutánea durante 12 meses.\n \n El informe anatomopatológico macroscópico de la pieza describía una nódulo tumoral que infiltraba pelvis y vena renal, con un diámetro de 8 x 5 x 7 cm, combinando áreas grisáceas con otras pardoamarillentas. En el estudio microscópico se observó una tumoración pseudocapsular correspondiente a adenocarcinoma renal de alto grado, con alguna zona anaplásica. El tumor invadía el sistema pielocalicial y había evidencia de invasión vascular de la vena renal. Los márgenes quirúrgicos estaban libres.\n En el 2004 en estudio de control, se detectó mediante TAC, un marcado crecimiento del lóbulo tiroideo izquierdo, con la presencia de un nódulo de 4 cm heterogéneo, en relación con el nódulo coloide previo conocido. En el 2005, en un nuevo TAC, se observó en el mismo lóbulo tiroideo izquierdo, el crecimiento del nódulo hasta 5,6 cm desplazando la tráquea. ", "start_offset": 26 }, { "end_offset": 1731, "label": "EXPLORATION", "segment": "La gammagrafía tiroidea mostraba un 'nódulo frío' en lóbulo izquierdo, mientras que la analítica sanguínea no demostró alteración en los niveles de hormonas tiroideas.\n \n ", "start_offset": 1560 }, { "end_offset": 1822, "label": "TREATMENT", "segment": "Ante el crecimiento progresivo del nódulo se decidió realizar hemitiroidectomía izquierda. 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La lesión se encontraba rodeada por tejido tiroideo respetado en el que se objetivaban folículos linfoides.\n Se realizaron técnicas de inmunohistoquímica en las cuales dichas células tumorales presentaron negatividad para la tiroglobulina y positividad para CK8, CK18, EMA, y Vimentina.\n Dadas las características histológicas del tumor y el perfil inmunohistoquímico, junto con la historia clínica del paciente, la lesión fue informada como metástasis de adenocarcinoma renal de células claras.\n \n", "start_offset": 1822 } ] } }
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No fiebre. No síndrome miccional.\n Sin alergias medicamentosas, no tiene antecedentes personales de interés.\n A la exploración física, se detecta edema y enrojecimiento de la piel escrotal, más acusado en el hemiescroto izquierdo ligeramente doloroso a palpación. Cordón y testículos de tamaño y consistencia normales no dolorosos.\n No aparece hidrocele a la transluminación y la maniobra de Prehn es negativa. Reflejos cremastéricos conservados.\n Se solicitó estudio ultrasonográfico que informó de: testículo y epidídimos bilaterales de tamaño normales sin signos de inflamación y sin aumento de el flujo al Eco-Doppler. Cubiertas testiculares y tejido celular subcutáneo de hemiescroto izquierdo engrosados con aumento del flujo Doppler.\n \n Se le diagnosticó de edema de escroto agudo idiopático, se le recetaron AINES y se le cito para revisión a los 5 días, donde se pudo observar que el edema, el eritema y el dolor habían desaparecido casi por completo.\n \n", "section_annotation": { "gold": [ { "end_offset": 135, "label": "PRESENT_ILLNESS", "segment": "Niño de 12 años que acude a Puertas de Urgencias por aumento del volumen escrotal dolor en hemiescroto izquierdo de horas de evolución ", "start_offset": 0 }, { "end_offset": 174, "label": "PAST_MEDICAL_HISTORY", "segment": "y sin antecedente traumático conocido. ", "start_offset": 135 }, { "end_offset": 209, "label": "PRESENT_ILLNESS", "segment": "No fiebre. No síndrome miccional.\n ", "start_offset": 174 }, { "end_offset": 284, "label": "PAST_MEDICAL_HISTORY", "segment": "Sin alergias medicamentosas, no tiene antecedentes personales de interés.\n ", "start_offset": 209 }, { "end_offset": 918, "label": "EXPLORATION", "segment": "A la exploración física, se detecta edema y enrojecimiento de la piel escrotal, más acusado en el hemiescroto izquierdo ligeramente doloroso a palpación. Cordón y testículos de tamaño y consistencia normales no dolorosos.\n No aparece hidrocele a la transluminación y la maniobra de Prehn es negativa. Reflejos cremastéricos conservados.\n Se solicitó estudio ultrasonográfico que informó de: testículo y epidídimos bilaterales de tamaño normales sin signos de inflamación y sin aumento de el flujo al Eco-Doppler. Cubiertas testiculares y tejido celular subcutáneo de hemiescroto izquierdo engrosados con aumento del flujo Doppler.\n \n ", "start_offset": 284 }, { "end_offset": 996, "label": "TREATMENT", "segment": "Se le diagnosticó de edema de escroto agudo idiopático, se le recetaron AINES ", "start_offset": 918 }, { "end_offset": 1137, "label": "EVOLUTION", "segment": "y se le cito para revisión a los 5 días, donde se pudo observar que el edema, el eritema y el dolor habían desaparecido casi por completo.\n \n", "start_offset": 996 } ] } }
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"note_text": "Mujer Colombiana de 65 años que presenta sintomatología de 1 año y 9 meses de dolor episódico tipo punzada localizado en hipocondrio y flanco izquierdo, asociado a hematuria, nauseas y pérdida de peso. Con antecedente patológico de enfermedad pulmonar obstructiva crónica y quirúrgico de histerectomía. Al examen físico la paciente no tenía alteraciones en sus signos vitales, con un índice de masa corporal de 20kg/Mts2, y el único signo que presentaba era dolor a la palpación de flanco izquierdo. Se inicia manejo médico considerando pielonefritis, sin resolución de la sintomatología, por lo que se toma Tomografía Axial Computarizada, la cual informa masa dependiente de riñón izquierdo de 9 x 10 cms, y se realiza nefrectomía.\n La muestra quirúrgica del tumor renal fue fijada luego de extraerse con formaldehído al 10% y embebido en parafina para su preparación y análisis microscópico, la coloración empleada fue Hematoxilina y Eosina.\n \n", "section_annotation": { "gold": [ { "end_offset": 6, "label": "PRESENT_ILLNESS", "segment": "Mujer ", "start_offset": 0 }, { "end_offset": 17, "label": "PAST_MEDICAL_HISTORY", "segment": "Colombiana ", "start_offset": 6 }, { "end_offset": 202, "label": "PRESENT_ILLNESS", "segment": "de 65 años que presenta sintomatología de 1 año y 9 meses de dolor episódico tipo punzada localizado en hipocondrio y flanco izquierdo, asociado a hematuria, nauseas y pérdida de peso. 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ciertas patologías infecciosas (brucelosis, triquinosis y algunas parasitosis).\n A la exploración se objetiva un teste derecho de características normales, y, en el teste izquierdo, se visualiza un aumento de tamaño así como eritema y dolor al tacto sin fluctuación de la zona afecta aunque con dolor a la movilización testicular.\n El tacto rectal resulta sin hallazgos patológicos y la exploración abdominal así como la percusión renal también descartó afecciones acompañantes al ser normales.\n Analíticamente destaca leucocitosis de 22.240 con neutrofilia (neutrófilos 90%).\n En la Ecografía testicular realizada previa al ingreso muestra aumentos homogéneos de la ecogenicidad del testículo afecto, sin afectación del epidídimo. Engrosamiento de partes blandas con ausencia de absceso testicular. Imágenes compatibles con orquitis sin afectación del epidídimo.\n Se realiza el diagnóstico de orquitis infecciosa, procediéndose a su ingreso con un tratamiento antibiótico que comprendió Doxiciclina, Imipenem y Teicoplanina, asociando Corticoides y terapia analgésica.\n Dos días tras el ingresse realiza una nueva ecografía, objetivándose aumento de la ecogenicidad homogénea similar al contralateral, afectación epididimaria. Engrosamiento de partes blandas con ausencia de absceso testicular. Se termina de filiar el cuadro sindrómico: Orquiepididimitis infecciosa.\n Para averiguar la causa de la patología que presenta el paciente se hace necesaria la realización de pruebas que permitan conocer el germen causante.\n El urocultivo resulta ser negativo, así como la aglutinación específica de Brucella. 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"note_text": "Paciente de 68 años, sin antecedentes médicos de interés, que ingresa en nuestro servicio para tratamiento de una litiasis piélica izquierda. El paciente refiere nicturia 3-4, polaquiuria, escozor miccional y episodios aislados de hematuria. La exploración física, el sistemático de sangre y la bioquímica están dentro de la normalidad.\n En radiografía simple de aparato urinario, se visualiza una imagen radiopaca a nivel de riñón izquierdo. En la ecografía abdominal se aprecia una imagen anecóica que afecta a todo el riñón derecho, compatible con hidronefrosis e importante atrofia cortical. En riñón izquierdo se visualiza hidronefrosis izquierda, con imágenes ecogénicas en pelvis, cálices medios e inferiores compatibles con cálculos. Ante estos hallazgos se realiza una urografía intravenosa, donde se distinguen un riñón derecho no funcionante y una bifidez pieloureteral, con una litiasis coraliforme en el pielón inferior izquierdo.\n \n En el TAC abdomino-pélvico, el riñón derecho aparece como una gran cavidad quística, sin evidencia de cortical funcionante. El riñón izquierdo presenta hipertrofia compensadora, con varias lesiones quísticas corticales en el polo superior y cálculos en el polo inferior. Se decide practicar punción percutánea bilateral, observando gran dilatación de riñón derecho, sin paso de contraste al uréter y bifidez pieloureteral del riñón izquierdo, con litiasis coraliforme en pielón inferior. Se deja colocada una sonda de nefrostomía en el lado izquierdo y se instaura tratamiento antibiótico, al extraer orina purulenta en la descarga del pielón inferior. La gammagrafía renal confirma la escasa función riñón derecho (11%). En la cistoscopia no se objetivan neorformaciones vesicales.\n Tras estudios preoperatorios dentro de la normalidad el paciente es intervenido quirúrgicamente realizándose nefrolitotomía percutánea izquierda, con fragmentación de litiasis con lithoclast y extracción de fragmentos. A los quince días se lleva a cabo una nueva nefrolitotomía con el fin de eliminar todos los restos litiásicos.\n El paciente continúa eliminando orina purulenta por sonda de nefrostomía percutánea. La angiografía por sustracción digital' (DIVAS) demuestra una escasa vascularización del polo inferior de riñón izquierdo. El paciente es sometido a una heminefrectomía polar inferior izquierda. En el postoperatorio inmediato se produce un empeoramiento de la función renal, con fiebre y leucocitosis, proceso compatible con sepsis de origen urinario que mejora con sueroterapia y antibioterapia parenteral.\n La pieza extirpada corresponde a un riñón izquierdo de 452 gramos que se acompaña de abundante grasa intimamente pegada al parenquima renal. Al corte el parenquima está sustituido por grandes cavidades quísticas ocupadas por un material blanquecino y blando. Histológicamente se observa una tumoración constituida por grandes masas sólidas, nidos y regueros infiltrantes de células de hábito escamoso que presentan grandes núcleos vesiculosos e irregulares con nucleolo prominente, citoplasma amplio, bien definido, eosinófilo claro, con abundantes imágenes de queratinización individual y formación de perlas corneas.\n \n En urografía de control posterior a la cirugía se aprecia una función normal del hemirriñón superior izquierdo, sin uropatía obstructiva.\n \n Un año y seis meses más tarde el paciente ingresa desde urgencias por hematuria macroscópica. En la urografía se aprecia un defecto de replección en cara lateral derecha, que es corroborado mediante cistoscopia. Se realiza resección transuretral de tumoración sólida en cara lateral derecha de vejiga, con diagnóstico anatomo-patológico de carcinoma vesical con áreas de diferenciación escamosa que infiltra la muscular, por lo que el paciente es sometido a cistoprostatectomía radical con derivación urinaria de uréter izquierdo a sigma (Mainz II). En el mismo acto quirúrgico se practica una nefroureterectomía derecha, donde se observa un riñón hidronefrótico, con un síndrome de la unión pieloureteral por un vaso polar. El estudio histológico reveló un carcinoma de células escamosas, estadio pT3a, pNx, pMx.\n El paciente fallece cuatro meses más tarde, con metástasis pulmonares y hepáticas.\n \n", "section_annotation": { "gold": [ { "end_offset": 21, "label": "PRESENT_ILLNESS", "segment": "Paciente de 68 años, ", "start_offset": 0 }, { "end_offset": 58, "label": "PAST_MEDICAL_HISTORY", "segment": "sin antecedentes médicos de interés, ", "start_offset": 21 }, { "end_offset": 242, "label": "PRESENT_ILLNESS", "segment": "que ingresa en nuestro servicio para tratamiento de una litiasis piélica izquierda. El paciente refiere nicturia 3-4, polaquiuria, escozor miccional y episodios aislados de hematuria. ", "start_offset": 58 }, { "end_offset": 1435, "label": "EXPLORATION", "segment": "La exploración física, el sistemático de sangre y la bioquímica están dentro de la normalidad.\n En radiografía simple de aparato urinario, se visualiza una imagen radiopaca a nivel de riñón izquierdo. En la ecografía abdominal se aprecia una imagen anecóica que afecta a todo el riñón derecho, compatible con hidronefrosis e importante atrofia cortical. En riñón izquierdo se visualiza hidronefrosis izquierda, con imágenes ecogénicas en pelvis, cálices medios e inferiores compatibles con cálculos. Ante estos hallazgos se realiza una urografía intravenosa, donde se distinguen un riñón derecho no funcionante y una bifidez pieloureteral, con una litiasis coraliforme en el pielón inferior izquierdo.\n \n En el TAC abdomino-pélvico, el riñón derecho aparece como una gran cavidad quística, sin evidencia de cortical funcionante. El riñón izquierdo presenta hipertrofia compensadora, con varias lesiones quísticas corticales en el polo superior y cálculos en el polo inferior. Se decide practicar punción percutánea bilateral, observando gran dilatación de riñón derecho, sin paso de contraste al uréter y bifidez pieloureteral del riñón izquierdo, con litiasis coraliforme en pielón inferior. 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A los quince días se lleva a cabo una nueva nefrolitotomía con el fin de eliminar todos los restos litiásicos.\n ", "start_offset": 1731 }, { "end_offset": 2147, "label": "EVOLUTION", "segment": "El paciente continúa eliminando orina purulenta por sonda de nefrostomía percutánea. ", "start_offset": 2062 }, { "end_offset": 2270, "label": "EXPLORATION", "segment": "La angiografía por sustracción digital' (DIVAS) demuestra una escasa vascularización del polo inferior de riñón izquierdo. ", "start_offset": 2147 }, { "end_offset": 2556, "label": "TREATMENT", "segment": "El paciente es sometido a una heminefrectomía polar inferior izquierda. En el postoperatorio inmediato se produce un empeoramiento de la función renal, con fiebre y leucocitosis, proceso compatible con sepsis de origen urinario que mejora con sueroterapia y antibioterapia parenteral.\n ", "start_offset": 2270 }, { "end_offset": 3319, "label": "EXPLORATION", "segment": "La pieza extirpada corresponde a un riñón izquierdo de 452 gramos que se acompaña de abundante grasa intimamente pegada al parenquima renal. Al corte el parenquima está sustituido por grandes cavidades quísticas ocupadas por un material blanquecino y blando. Histológicamente se observa una tumoración constituida por grandes masas sólidas, nidos y regueros infiltrantes de células de hábito escamoso que presentan grandes núcleos vesiculosos e irregulares con nucleolo prominente, citoplasma amplio, bien definido, eosinófilo claro, con abundantes imágenes de queratinización individual y formación de perlas corneas.\n \n En urografía de control posterior a la cirugía se aprecia una función normal del hemirriñón superior izquierdo, sin uropatía obstructiva.\n \n ", "start_offset": 2556 }, { "end_offset": 3413, "label": "EVOLUTION", "segment": "Un año y seis meses más tarde el paciente ingresa desde urgencias por hematuria macroscópica. ", "start_offset": 3319 }, { "end_offset": 3531, "label": "EXPLORATION", "segment": "En la urografía se aprecia un defecto de replección en cara lateral derecha, que es corroborado mediante cistoscopia. 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diagnosticó de RH con una masa sólida que asienta en el istmo renal. El TAC abdominal confirmó la presencia de un tumor de 8 cm. en el istmo renal sin evidenciar adenopatías, metástasis locoregionales ni lesiones a distancia en el estudio de extensión.\n \n El estudio vascular preoperatorio mediante arteriografía, demostró la existencia de dos arterias renales con nacimiento ortotópico. Las imágenes selectivas de la arteria renal derecha, evidenciaron vasos neoformados a expensas de la rama medial en su bifurcación con normalidad del árbol venoso intra y extrarrenal.\n \n Con la presunción diagnóstica de carcinoma renal, se practicó istmectomía y nefrectomía izquierda a través de una laparotomía media. Durante el acto operatorio se apreció que la pelvis renal y el uréter izquierdos se hallaban infiltrados por el tumor. La anatomía patológica mostró una lesión renal neoformada de 10 cm. afectando cápsula, grasa perirrenal, así como, la vía urinaria izquierda. La histología fue de carcinoma neuroendocrino de célula no pequeña. El estudio inmuno-histoquímico resultó positivo para CD-56 y sinaptofisina.\n A los 4 meses de la intervención, el TAC abdominal apreció un nódulo sólido de 2 cm. en el polo inferior del riñón derecho, así como, adenopatías para-aórticas izquierdas y múltiples nódulos retrocrurales subcentimétricos. El estudio PET-TC mostró que las lesiones descritas eran sugestivas de metástasis. El paciente fue sometido a tratamiento con radioterapia externa (RT) y quimioterapia (QT) (carboplatino y VP-16) con buena tolerancia y respuesta parcial. El paciente permaneció asintomático y sin efectos secundarios tardíos de RT ni QT. Dos años tras la cirugía el TAC abdominal muestra la persistencia de pequeños ganglios retroperitoneales, sin otros hallazgos destacables.\n \n", "section_annotation": { "gold": [ { "end_offset": 18, "label": "PRESENT_ILLNESS", "segment": "Varón de 63 años, ", "start_offset": 0 }, { "end_offset": 47, "label": "PAST_MEDICAL_HISTORY", "segment": "sin antecedentes de interés, ", "start_offset": 18 }, { "end_offset": 207, "label": "PRESENT_ILLNESS", "segment": "al que por ecografía abdominal solicitada para el estudio de un síndrome prostático, se le diagnosticó de RH con una masa sólida que asienta en el istmo renal. ", "start_offset": 47 }, { "end_offset": 713, "label": "EXPLORATION", "segment": "El TAC abdominal confirmó la presencia de un tumor de 8 cm. en el istmo renal sin evidenciar adenopatías, metástasis locoregionales ni lesiones a distancia en el estudio de extensión.\n \n El estudio vascular preoperatorio mediante arteriografía, demostró la existencia de dos arterias renales con nacimiento ortotópico. Las imágenes selectivas de la arteria renal derecha, evidenciaron vasos neoformados a expensas de la rama medial en su bifurcación con normalidad del árbol venoso intra y extrarrenal.\n \n ", "start_offset": 207 }, { "end_offset": 965, "label": "TREATMENT", "segment": "Con la presunción diagnóstica de carcinoma renal, se practicó istmectomía y nefrectomía izquierda a través de una laparotomía media. Durante el acto operatorio se apreció que la pelvis renal y el uréter izquierdos se hallaban infiltrados por el tumor. ", "start_offset": 713 }, { "end_offset": 1558, "label": "EXPLORATION", "segment": "La anatomía patológica mostró una lesión renal neoformada de 10 cm. afectando cápsula, grasa perirrenal, así como, la vía urinaria izquierda. La histología fue de carcinoma neuroendocrino de célula no pequeña. El estudio inmuno-histoquímico resultó positivo para CD-56 y sinaptofisina.\n A los 4 meses de la intervención, el TAC abdominal apreció un nódulo sólido de 2 cm. en el polo inferior del riñón derecho, así como, adenopatías para-aórticas izquierdas y múltiples nódulos retrocrurales subcentimétricos. El estudio PET-TC mostró que las lesiones descritas eran sugestivas de metástasis. ", "start_offset": 965 }, { "end_offset": 1713, "label": "TREATMENT", "segment": "El paciente fue sometido a tratamiento con radioterapia externa (RT) y quimioterapia (QT) (carboplatino y VP-16) con buena tolerancia y respuesta parcial. ", "start_offset": 1558 }, { "end_offset": 1937, "label": "EVOLUTION", "segment": "El paciente permaneció asintomático y sin efectos secundarios tardíos de RT ni QT. Dos años tras la cirugía el TAC abdominal muestra la persistencia de pequeños ganglios retroperitoneales, sin otros hallazgos destacables.\n \n", "start_offset": 1713 } ] } }
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Resto de antecedentes sin interés. Acude a Urgencias por presentar desde hace 10 días un bulto en el pene, doloroso con la erección. A la exploración presentaba un cordón longitudinal en el dorso del pene de unos tres centímetros, móvil y doloroso. Afebril. No adenopatías inguinales. Se realizó eco-doppler peneano en el que se evidenció una clara trombosis de la vena dorsal superficial del pene y que no se colapsaba a la presión del transductor. Estudio de coagulación normal.\n \n Juicio Diagnóstico: Enfermedad de Mondor. El paciente recibió tratamiento con heparina de bajo peso molecular y antiinflamatorios.\n \n", "section_annotation": { "gold": [ { "end_offset": 85, "label": "PRESENT_ILLNESS", "segment": "Varón de 37 años al que un mes antes se le había realizado una hemorragia bilateral. ", "start_offset": 0 }, { "end_offset": 120, "label": "PAST_MEDICAL_HISTORY", "segment": "Resto de antecedentes sin interés. ", "start_offset": 85 }, { "end_offset": 218, "label": "PRESENT_ILLNESS", "segment": "Acude a Urgencias por presentar desde hace 10 días un bulto en el pene, doloroso con la erección. ", "start_offset": 120 }, { "end_offset": 611, "label": "EXPLORATION", "segment": "A la exploración presentaba un cordón longitudinal en el dorso del pene de unos tres centímetros, móvil y doloroso. Afebril. No adenopatías inguinales. Se realizó eco-doppler peneano en el que se evidenció una clara trombosis de la vena dorsal superficial del pene y que no se colapsaba a la presión del transductor. Estudio de coagulación normal.\n \n Juicio Diagnóstico: Enfermedad de Mondor. ", "start_offset": 218 }, { "end_offset": 702, "label": "TREATMENT", "segment": "El paciente recibió tratamiento con heparina de bajo peso molecular y antiinflamatorios.\n \n", "start_offset": 611 } ] } }
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Acude a su MAP por presentar dolor lumbar, que aumenta con la flexo-extensión de las piernas; se pauta tratamiento analgésico y observación domiciliaria. Dos horas más tarde avisan desde el domicilio por hematuria franca e intenso dolor abdominal; presenta dolor a la palpación abdominal con signos de irritación peritoneal, tensión arterial de 110/70 y palidez de piel y mucosas; se decide traslado al Hospital Universitario de Salamanca para valoración.\n A su llegada al servicio de urgencias (en torno las 23 horas) el paciente presenta marcada defensa abdominal, con tensiones de 135/85, frecuencia cardiaca de 94 latidos por minuto y pulsos conservados; resto de la exploración física sin datos de interés. Se realiza ECG en el que se detecta fibrilación auricular no conocida previamente. Presenta una analítica con 12.8 g/dl de hemoglobina y 69 % de tiempo de protrombina como datos más destacables. Se decide realización de TAC abdominal urgente con contraste, que se informa como riñón en herradura con rotura a nivel central y medial izquierdo, con gran hematoma retroperitoneal, con extravasación activa de contraste próxima a la fractura renal; no existe afectación de otras estructuras.\n \n Ante estos hallazgos y la situación clínica del enfermo se decide laparotomía media exploradora, en la que se observa gran hemorretroperitoneo que afecta a la raíz de mesenterio, consecuencia de rotura múltiple a nivel del hemi-riñón izquierdo, llegando a comprometer la vía intrarrenal (grado IV según la escala de lesión orgánica de la American Association for the Surgery of Trauma) (5); se realiza evacuación del hematoma retroperitoneal junto con nefrectomía del hemi-riñón izquierdo. Durante la intervención el paciente permanece estable, precisando la transfusión de 2 concentrados de hematíes.\n En el postoperatorio inmediato el paciente permanece estable hemodinámicamente, con cifras de hemoglobina en torno a 10 g/dl, ligera febrícula, continúa con cierta distensión abdominal y escaso peristaltismo. En TAC abdominal realizado el día 23/9/07 se aprecia una colección de aproximadamente 1 cm de tamaño optando por la vigilancia activa.\n \n", "section_annotation": { "gold": [ { "end_offset": 29, "label": "PRESENT_ILLNESS", "segment": "Paciente de 67 años de edad, ", "start_offset": 0 }, { "end_offset": 69, "label": "PAST_MEDICAL_HISTORY", "segment": "sin antecedentes personales de interés, ", "start_offset": 29 }, { "end_offset": 257, "label": "PRESENT_ILLNESS", "segment": "que el día 18/9/07 a las 20 horas sufre una caída en la calle, golpeándose en la zona lumbar. Acude a su MAP por presentar dolor lumbar, que aumenta con la flexo-extensión de las piernas; ", "start_offset": 69 }, { "end_offset": 317, "label": "TREATMENT", "segment": "se pauta tratamiento analgésico y observación domiciliaria. ", "start_offset": 257 }, { "end_offset": 411, "label": "EVOLUTION", "segment": "Dos horas más tarde avisan desde el domicilio por hematuria franca e intenso dolor abdominal; ", "start_offset": 317 }, { "end_offset": 544, "label": "EXPLORATION", "segment": "presenta dolor a la palpación abdominal con signos de irritación peritoneal, tensión arterial de 110/70 y palidez de piel y mucosas; ", "start_offset": 411 }, { "end_offset": 620, "label": "DERIVED_FROM/TO", "segment": "se decide traslado al Hospital Universitario de Salamanca para valoración.\n ", "start_offset": 544 }, { "end_offset": 1757, "label": "EXPLORATION", "segment": "A su llegada al servicio de urgencias (en torno las 23 horas) el paciente presenta marcada defensa abdominal, con tensiones de 135/85, frecuencia cardiaca de 94 latidos por minuto y pulsos conservados; resto de la exploración física sin datos de interés. Se realiza ECG en el que se detecta fibrilación auricular no conocida previamente. Presenta una analítica con 12.8 g/dl de hemoglobina y 69 % de tiempo de protrombina como datos más destacables. Se decide realización de TAC abdominal urgente con contraste, que se informa como riñón en herradura con rotura a nivel central y medial izquierdo, con gran hematoma retroperitoneal, con extravasación activa de contraste próxima a la fractura renal; no existe afectación de otras estructuras.\n \n Ante estos hallazgos y la situación clínica del enfermo se decide laparotomía media exploradora, en la que se observa gran hemorretroperitoneo que afecta a la raíz de mesenterio, consecuencia de rotura múltiple a nivel del hemi-riñón izquierdo, llegando a comprometer la vía intrarrenal (grado IV según la escala de lesión orgánica de la American Association for the Surgery of Trauma) (5); ", "start_offset": 620 }, { "end_offset": 1969, "label": "TREATMENT", "segment": "se realiza evacuación del hematoma retroperitoneal junto con nefrectomía del hemi-riñón izquierdo. Durante la intervención el paciente permanece estable, precisando la transfusión de 2 concentrados de hematíes.\n ", "start_offset": 1757 }, { "end_offset": 2178, "label": "EVOLUTION", "segment": "En el postoperatorio inmediato el paciente permanece estable hemodinámicamente, con cifras de hemoglobina en torno a 10 g/dl, ligera febrícula, continúa con cierta distensión abdominal y escaso peristaltismo. ", "start_offset": 1969 }, { "end_offset": 2315, "label": "EXPLORATION", "segment": "En TAC abdominal realizado el día 23/9/07 se aprecia una colección de aproximadamente 1 cm de tamaño optando por la vigilancia activa.\n \n", "start_offset": 2178 } ] } }
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Se había realizado un descenso de su inmunosupresión con CsA y la adición de Azathioprina, sin resultados. Presenta 15 días después de iniciar la hemodiálisis un cuadro de dolor agudo sobre el injerto con inestabilidad hemodinámica progresiva y refractaria al tratamiento médico.\n En la ecografía urgente se detecta hematoma subcapsular e intraparenquimatoso en el injerto, que se confirma mediante TC, realizándose trasplantectomía pocas horas después. Durante la intervención se aprecia lesión sólida en polo superior del injerto, de unos 4 cm de diámetro, con evidentes signos de ruptura espontánea y sangrado. También se advierten otras múltiples lesiones sólidas y quísticas de pequeño tamaño en la superficie del injerto. El análisis anatomopatológico reveló un CCR multicéntrico, en el seno de una enfermedad quística renal adquirida del injerto. El paciente reanudó la hemodiálisis y se encuentra libre de enfermedad y asintomático tras 12 años de seguimiento.\n \n", "section_annotation": { "gold": [ { "end_offset": 500, "label": "PRESENT_ILLNESS", "segment": "Varón de 51 años trasplantado en 1986 por glomerulonefritis mesangiocapilar tipo II, con disfunción crónica del injerto por recidiva de su enfermedad renal sobre el mismo, que obliga a reanudar la hemodiálisis en 1996. Se había realizado un descenso de su inmunosupresión con CsA y la adición de Azathioprina, sin resultados. Presenta 15 días después de iniciar la hemodiálisis un cuadro de dolor agudo sobre el injerto con inestabilidad hemodinámica progresiva y refractaria al tratamiento médico.\n ", "start_offset": 0 }, { "end_offset": 622, "label": "EXPLORATION", "segment": "En la ecografía urgente se detecta hematoma subcapsular e intraparenquimatoso en el injerto, que se confirma mediante TC, ", "start_offset": 500 }, { "end_offset": 673, "label": "TREATMENT", "segment": "realizándose trasplantectomía pocas horas después. ", "start_offset": 622 }, { "end_offset": 1073, "label": "EXPLORATION", "segment": "Durante la intervención se aprecia lesión sólida en polo superior del injerto, de unos 4 cm de diámetro, con evidentes signos de ruptura espontánea y sangrado. También se advierten otras múltiples lesiones sólidas y quísticas de pequeño tamaño en la superficie del injerto. El análisis anatomopatológico reveló un CCR multicéntrico, en el seno de una enfermedad quística renal adquirida del injerto. 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"start_offset": 2411 }, { "boundary": null, "end_offset": 2430, "span": "ciprofloxacino.", "start_offset": 2415 }, { "boundary": "EXPLORATION", "end_offset": 2440, "span": "Presencia", "start_offset": 2431 }, { "boundary": null, "end_offset": 2443, "span": "de", "start_offset": 2441 }, { "boundary": null, "end_offset": 2452, "span": "pequeños", "start_offset": 2444 }, { "boundary": null, "end_offset": 2459, "span": "restos", "start_offset": 2453 }, { "boundary": null, "end_offset": 2470, "span": "litiásicos", "start_offset": 2460 }, { "boundary": null, "end_offset": 2482, "span": "bilaterales", "start_offset": 2471 }, { "boundary": null, "end_offset": 2494, "span": "subclínicos", "start_offset": 2483 }, { "boundary": null, "end_offset": 2500, "span": "según", "start_offset": 2495 }, { "boundary": null, "end_offset": 2509, "span": "técnicas", "start_offset": 2501 }, { "boundary": null, "end_offset": 2512, "span": "de", "start_offset": 2510 }, { "boundary": null, "end_offset": 2520, "span": "imagen.", "start_offset": 2513 }, { "boundary": null, "end_offset": 2523, "span": "\n \n", "start_offset": 2520 } ] }, "note_id": "S0004-06142009000300009-1", "note_text": "Presentamos el caso de una mujer de 35 años con antecedentes de cirugía litiásica en otro centro y en ambos riñones. Según se informaba se le había realizado, pielolitotomía derecha hacía 15 años. Dos años después se le practica pielolitotomía izquierda y 10 meses antes de ser atendida en nuestro Servicio (año 2005) nueva nefrolitotomía sobre riñón izquierdo, por litiasis renal compleja.\n La paciente presenta un episodio de infección urinaria complicada con pionefrosis y septicemia, tras lo cual se le coloca cateter doble J que queda mal posicionado, subpiélico, que no resuelve el cuadro séptico, por lo que es preciso realizar nefrostomia percutánea izquierda para drenaje renal, situación, en la cual la paciente es remitida a nuestro centro. En la urografía intravenosa que aporta la enferma, se observa litiasis radiodensa infecciosa, pielolocalicial múltiple compleja, sobre riñón con hidronefrosis grado III-IV por importante esclerosis piélica secundaria a cirugías previas sobre dicha unidad renal. Presenta función renal relativamente conservada. Observamos asimismo, cambios postquirúrgicos con moderada atrofia parenquimatosa de unidad renal derecha. La analítica de la paciente reflejaba cifras de urea y creatinina normales.\n \n Ante los hallazgos urográficos, dada la situación del riñón contralateral y la edad de la paciente, se decide lumbotomía exploradora para intentar cirugía conservadora, consistente en nefrectomía polar inferior con nefrolitotomía y reconstrucción de la vía urinaria superior mediante uréterocalicostomía.\n En el postoperatorio la paciente requiere la trasfusión de dos concentrados de hematíes por anemia persistente. La evolución posterior no presenta mayores complicaciones dándose de alta al séptimo día. La anatomía patológica de la pieza informó de cambios compatibles con pielonefritis crónica postlitiásica y el análisis del cálculo reveló su composición de fosfato amónico magnésico.\n Dos años y medio después de la cirugía, la paciente refiere únicamente molestias leves en flanco izquierdo.\n La urografía de control refleja ausencia de litiasis con cierto retraso nefrográfico izquierdo y vía excretora derecha sin cambios respecto a previos. El renograma muestra una función renal izquierda del 30%, con riñón derecho compensador, 70%. Continúa con cifras de función renal dentro de la normalidad, y solo ha presentado un episodio de ITU que ha cedido con ciprofloxacino. Presencia de pequeños restos litiásicos bilaterales subclínicos según técnicas de imagen.\n \n", "section_annotation": { "gold": [ { "end_offset": 44, "label": "PRESENT_ILLNESS", "segment": "Presentamos el caso de una mujer de 35 años ", "start_offset": 0 }, { "end_offset": 392, "label": "PAST_MEDICAL_HISTORY", "segment": "con antecedentes de cirugía litiásica en otro centro y en ambos riñones. Según se informaba se le había realizado, pielolitotomía derecha hacía 15 años. Dos años después se le practica pielolitotomía izquierda y 10 meses antes de ser atendida en nuestro Servicio (año 2005) nueva nefrolitotomía sobre riñón izquierdo, por litiasis renal compleja.\n ", "start_offset": 44 }, { "end_offset": 752, "label": "PRESENT_ILLNESS", "segment": "La paciente presenta un episodio de infección urinaria complicada con pionefrosis y septicemia, tras lo cual se le coloca cateter doble J que queda mal posicionado, subpiélico, que no resuelve el cuadro séptico, por lo que es preciso realizar nefrostomia percutánea izquierda para drenaje renal, situación, en la cual la paciente es remitida a nuestro centro. ", "start_offset": 392 }, { "end_offset": 1248, "label": "EXPLORATION", "segment": "En la urografía intravenosa que aporta la enferma, se observa litiasis radiodensa infecciosa, pielolocalicial múltiple compleja, sobre riñón con hidronefrosis grado III-IV por importante esclerosis piélica secundaria a cirugías previas sobre dicha unidad renal. Presenta función renal relativamente conservada. Observamos asimismo, cambios postquirúrgicos con moderada atrofia parenquimatosa de unidad renal derecha. La analítica de la paciente reflejaba cifras de urea y creatinina normales.\n \n ", "start_offset": 752 }, { "end_offset": 1554, "label": "TREATMENT", "segment": "Ante los hallazgos urográficos, dada la situación del riñón contralateral y la edad de la paciente, se decide lumbotomía exploradora para intentar cirugía conservadora, consistente en nefrectomía polar inferior con nefrolitotomía y reconstrucción de la vía urinaria superior mediante uréterocalicostomía.\n ", "start_offset": 1248 }, { "end_offset": 1756, "label": "EVOLUTION", "segment": "En el postoperatorio la paciente requiere la trasfusión de dos concentrados de hematíes por anemia persistente. La evolución posterior no presenta mayores complicaciones dándose de alta al séptimo día. 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Refiere dolor en el dorso del pene en relación a un cordón indurado y palpable en dicha región, que se acentúa con la erección.\n En su historia clínica sólo destaca ser fumador de 20 cigarrillos/ día, sin ninguna enfermedad de base ni tratamiento habitual; en su historia familiar tampoco se encontraron antecedentes de interés.\n Durante la exploración física se aprecia una inflamación prepucial intensa con erosiones blanquecinas sugerentes de candidiasis. En el dorso peneano se evidencia un cordón duro y doloroso que se extiende desde la base hasta el surco balanoprepucial, asociado a inflamación del tejido adyacente. El resto de la exploración física fue normal.\n Ante la sospecha de enfermedad de Mondor se realizó ecografía doppler peneana que confirmó el diagnóstico.\n \n El tratamiento instaurado fue Fluconazol tópico 1 aplicación /12h, Amoxicilina- Clavulanico 875 mg/8h e Ibuprofeno 600 mg/8h durante 10 días, asociado a reposo de la actividad sexual hasta la resolución del cuadro.\n Durante la primera semana, se objetiva una disminución progresiva del cordón dorsal en sentido distal y del dolor. Las lesiones relacionadas con la candidiasis han desaparecido. En este momento se pone de manifiesto a la exploración una fimosis puntiforme que impide la retracción prepucial, y por la que precisará ser circuncidado. A las 6 semanas se realiza ecografía doppler peneana donde se aprecia la repermeabilización de la vena dorsal superficial del pene en ausencia de trombo venoso, dando por resuelto el cuadro.\n \n", "section_annotation": { "gold": [ { "end_offset": 350, "label": "PRESENT_ILLNESS", "segment": "Varón de 43 años que acude a urgencias por inflamación y edema prepucial asociado a tumefacción del dorso peneano de 3 semanas de evolución.\n El paciente niega relaciones sexuales de riesgo, síndrome miccional, o fiebre. 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adenocarcinomas metastáticos o por infiltración local de la vejiga.\n Encontramos nueve casos con carcinoma vesical de células en anillo de sello diagnosticados y tratados en nuestro servicio entre Enero de 1992 y Enero de 2009; ocho de los pacientes eran varones y sólo había una mujer, con de edades comprendidas entre los 39 y los 82 años, con una media de 69 años.\n El debut clínico fue la hematuria en seis de los casos y clínica irritativa con polaquiuria y disuria importante en uno de ellos. Uno de estos pacientes presentaba importante síndrome general con caquexia en el momento del diagnóstico.\n El estudio citológico de la orina mostró células malignas en tres pacientes, atipias en dos y fue normal en los dos restantes.\n La TAC mostró engrosamiento de la pared vesical en todos los casos, con infiltración del pericistio y adenopatías múltiples retroperitoneales en cuatro de los pacientes y uropatía obstructiva uni o bilateral en cuatro de los casos.\n Dos de los casos presentaron alteración del estudio radiológico gastroduodenal siendo completado con endoscopia digestiva alta y baja con el hallazgo de gastritis crónica antral con focos de metaplasia intestinal en uno de los sujetos y pólipo adenomatoso de sigma en otro.\n En todos los casos se realizaron estudios histológicos de las masas resecadas con inclusión en parafina, colorante Hematoxilina/Eosina y tinción PAS. En algunos casos se realizaron estudios inmunohistoquimicos (PSA, E-caderina, citoqueratina 20, S100) para descartar origen extravesical (1).\n Tras el estudio anatomopatológico encontramos cuatro casos de adenocarcinoma vesical de células en anillo de sello primario puros y cinco mixtos con áreas de células en anillo de sello en el seno de carcinomas de células transicionales.\n La anatomía patológica de estos tumores mostró células de citoplasma amplio eosinófilo con vacuola central PAS positiva y desplazamiento del núcleo hacia la periferia (morfología típica en anillo de sello).\n \n El tratamiento definitivo consistió en cistectomía radical con derivación tipo Bricker en tres de los pacientes, cistectomía con derivación Mainz II en otro de ellos y paliativo en los cuatro restantes con RTU en tres casos y NPC paliativas en otro.\n \n Recibieron quimioterapia adyuvante tres pacientes consistentes en MVAC.\n La supervivencia fue de 570, 480, 250 y 8 días para los tumores puros y de 512, 410, 280, 270 días y mayor de 4 años en un caso, para los tumores mixtos. Todos los pacientes, excepto dos habían fallecido en el momento de realizarse este estudio. En la literatura revisada la supervivencia global no supera el 11% a los 5 años (2,3).\n \n", "section_annotation": { "gold": [ { "end_offset": 311, "label": "PRESENT_ILLNESS", "segment": "Se revisaron las historias clínicas de todos los pacientes intervenidos en nuestro servicio a los que se les realizó RTU vesical entre los años 1990-2009 descartando aquellos tumores que no cumplían los criterios histológicos, excluyendo los adenocarcinomas metastáticos o por infiltración local de la vejiga.\n ", "start_offset": 0 }, { "end_offset": 2225, "label": "EXPLORATION", "segment": "Encontramos nueve casos con carcinoma vesical de células en anillo de sello diagnosticados y tratados en nuestro servicio entre Enero de 1992 y Enero de 2009; ocho de los pacientes eran varones y sólo había una mujer, con de edades comprendidas entre los 39 y los 82 años, con una media de 69 años.\n El debut clínico fue la hematuria en seis de los casos y clínica irritativa con polaquiuria y disuria importante en uno de ellos. Uno de estos pacientes presentaba importante síndrome general con caquexia en el momento del diagnóstico.\n El estudio citológico de la orina mostró células malignas en tres pacientes, atipias en dos y fue normal en los dos restantes.\n La TAC mostró engrosamiento de la pared vesical en todos los casos, con infiltración del pericistio y adenopatías múltiples retroperitoneales en cuatro de los pacientes y uropatía obstructiva uni o bilateral en cuatro de los casos.\n Dos de los casos presentaron alteración del estudio radiológico gastroduodenal siendo completado con endoscopia digestiva alta y baja con el hallazgo de gastritis crónica antral con focos de metaplasia intestinal en uno de los sujetos y pólipo adenomatoso de sigma en otro.\n En todos los casos se realizaron estudios histológicos de las masas resecadas con inclusión en parafina, colorante Hematoxilina/Eosina y tinción PAS. En algunos casos se realizaron estudios inmunohistoquimicos (PSA, E-caderina, citoqueratina 20, S100) para descartar origen extravesical (1).\n Tras el estudio anatomopatológico encontramos cuatro casos de adenocarcinoma vesical de células en anillo de sello primario puros y cinco mixtos con áreas de células en anillo de sello en el seno de carcinomas de células transicionales.\n La anatomía patológica de estos tumores mostró células de citoplasma amplio eosinófilo con vacuola central PAS positiva y desplazamiento del núcleo hacia la periferia (morfología típica en anillo de sello).\n \n ", "start_offset": 311 }, { "end_offset": 2551, "label": "TREATMENT", "segment": "El tratamiento definitivo consistió en cistectomía radical con derivación tipo Bricker en tres de los pacientes, cistectomía con derivación Mainz II en otro de ellos y paliativo en los cuatro restantes con RTU en tres casos y NPC paliativas en otro.\n \n Recibieron quimioterapia adyuvante tres pacientes consistentes en MVAC.\n ", "start_offset": 2225 }, { "end_offset": 2886, "label": "EVOLUTION", "segment": "La supervivencia fue de 570, 480, 250 y 8 días para los tumores puros y de 512, 410, 280, 270 días y mayor de 4 años en un caso, para los tumores mixtos. 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El examen físico mostró un bocio difuso a la palpación y sus exámenes de laboratorio revelaron hormonas tiroideas normales y anticuerpos anti-tiroglobulina (AAT) positivos. La ecografía tiroidea reveló tres nódulos tiroideos, el mayor de 7 mm con microcalcificaciones en su interior. Se realizó punción-biopsia bajo ecografía, demostrándose cáncer papilar del tiroides. Se sometió a tiroidectomía total, resultando un foco de cáncer papilar de 6x5x5 mm y metástasis paratraqueales bilaterales. Recibió 200 mCi de radioyodo con rastreo sistémico post-dosis terapéutica negativo. Se mantuvo con dosis supresiva de levotiroxina (Eutirox®).\n \n Al año de seguimiento se realizó un nuevo rastreo sistémico con dosis trazadora de 10 mCi, resultando negativo, la tiroglobulina no fue de utilidad dado la presencia de anticuerpos AAT: 164 ng/mL. En el segundo año de seguimiento por ecografía cervical, se detectó la aparición de un nódulo de 9,6 mm, el cual no fue técnicamente posible de puncionar, que se asoció a un aumento de los títulos de AAT 174 ng/mL. Se decidió dar una nueva dosis terapéutica de 200 mCi con rastreo que mostró captación a nivel cervical.\n En la ecografía de control al año post segunda dosis de radioyodo, se detectó una masa de 2 cm a nivel supraesternal central y 3 ganglios de 1 cm cada uno, en cadena cervical izquierda, sugerentes de neoplasia, contralaterales a la lesión primaria, asociado a un ascenso de los AAT a 217 ng/mL. Se decidió realizar una exploración quirúrgica, con una disección selectiva de cuello bilateral de los niveles II, III, IV y Vb y una disección del nivel VI izquierdo y pretraqueal. La biopsia confirmó el compromiso neoplásico ganglionar de los niveles IV y Vb derechos y de los niveles IIb, III, IV, Vb y VI izquierdo. Recibió 300 mCi de radioyodo con rastreo post-dosis negativo y los AAT se hicieron negativos con una tiroglobulina (TG) menor de 0,2 ng/mL, con 85% de recuperación.\n \n A solicitud de la familia, se realizó estudio tiroideo a padres y dos hermanos quienes no presentaban evidencia de enfermedad. La madre presentó en la ecografía tiroidea un nódulo de 7 mm, el cual resultó ser cáncer papilar, sin compromiso capsular ni ganglionar. El hermano presentó 2 nódulos de 8 y 5 mm cuyo estudio con biopsia fue negativo para células neoplásicas y la hermana presentó signos ecográficos de tiroiditis crónica con AAT positivos.\n \n", "section_annotation": { "gold": [ { "end_offset": 74, "label": "PRESENT_ILLNESS", "segment": "Paciente mujer de 21 años quien consultó por aumento de volumen cervical. 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Ingresó 6 h después de iniciar disartria severa, desviación de mirada a derecha, hemiplejia facio-braquio-crural, hemianestesia y hemianopsia izquierda. El resto de su examen no evidenciaba otras alteraciones. La TC mostró signos precoces de un IMACM derecho. Se discutió con la familia la posibilidad de una progresión a un IMACM y la eventual necesidad de una HD. La familia comprendió y aceptó la intervención.\n \n Su estudio etiológico fue negativo. A las 24 h, el paciente estaba en sopor superficial sin midriasis ni aparición de Babinski a derecha. Se realizó una TC. Debido a la progresión del cuadro clínico y de la TC, se decidió realizar la HD, la cual se efectuó sin complicaciones.\n \n El paciente recuperó conciencia antes de 24 h y fue extubado a las 48 h. No presentó complicaciones. Recuperó la movilidad de la pierna izquierda, logró deglución y fue dado de alta a los 22 días. Desde el séptimo día se inició aspirina (325 mg/día). Se mantuvo en neurorrehabilitación en su domicilio, logrando marcha en 3 meses.\n Al cuarto mes se instaló la plaqueta ósea, siendo dado de alta al quinto día. A los 8 meses presentó una crisis convulsiva, se inició fenitoína (300 mg/día). A los 2 años realiza una vida independiente pero limitada a su casa: camina ayudado de un bastón, come solo, se viste y va al baño ayudado por su señora (escala modificada de Rankin= 3).\n \n Al preguntarle a ambos pacientes y sus familias, individualmente, si volverían a realizar la cirugía después de haber sufrido la experiencia, respondieron afirmativamente.\n", "section_annotation": { "gold": [ { "end_offset": 30, "label": "PRESENT_ILLNESS", "segment": "Paciente diestro, de 54 años, ", "start_offset": 0 }, { "end_offset": 57, "label": "PAST_MEDICAL_HISTORY", "segment": "sin antecedentes mórbidos. 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Consultó en servicio de urgencia, donde se documentó taquicardia ventricular con frecuencia de 150 latidos por minuto con imagen de bloqueo completo de\n rama izquierda y eje inferior izquierdo, sin compromiso hemodinámico. Se hospitalizó y se inició tratamiento con amiodarona intravenosa, a pesar de lo cual permaneció con taquicardia, por lo cual 24 h después de su ingreso se realizó cardioversión eléctrica. Su electrocardiograma en ritmo sinusal mostró conducción aurículo-ventricular con PR de 200 ms y complejos QRS ancho con imagen de bloqueo completo de rama derecha y 240 ms de duración. Estando hospitalizada presentó recurrencia de TVS, apareciendo una segunda morfología, por lo cual se decidió intentar tratamiento mediante fulguración con radiofrecuencia. Bajo sedación con midazolam y fentanyl, se realizó estudio electrofisiológico. Por vía venosa femoral derecha se avanzaron tres catéteres cuadripolares (Daig®, St. Jude Medical Inc) que se ubicaron en la región alta de la aurícula derecha, a nivel del His y en el ápex del ventrículo derecho, para registrar potenciales endocavitarios y realizar estimulación. Con estimulación desde el ápex del ventrículo derecho con ciclo basal de 550 ms e introduciendo dos extraestímulos se indujo fácilmente las dos morfologías de taquicardia. Mediante mapeo durante estimulación en el TSVD, con catéter de fulguración EPT curva estándar y punta de 4 mm (Boston Scientific® Corporation) se reprodujo la morfología de ambas taquicardias, con concordancia en las 12 derivaciones del electrocardiograma. Además se aplicó radiofrecuencia en la región del infundíbulo, identificando zonas de electrogramas fragmentados y potenciales mediodiastólicos durante taquicardia. Se completó un total de 46 pulsos de radiofrecuencia. 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Ingresó el 31/12/04 a través de Servicio de Urgencia por presentar una semana antes un cuadro caracterizado por decaimiento y malestar general inespecífico. El día anterior a su ingreso presentó 3 episodios de deposiciones semilíquidas y dolor abdominal tipo cólico de intensidad leve. El día de su ingreso fue observada por su hijo médico en su domicilio quien la encontró comprometida de conciencia, con falta de reactividad a órdenes verbales, mirada fija, midriasis e hipoventilación que evoluciona a la apnea, por lo que fue sometida a reanimación básica, recuperando nivel de conciencia y ventilación espontánea.\n Antecedentes mórbidos: angina de pecho estable de varios años de evolución, accidente cerebrovascular cerebeloso sin secuelas, 5 años antes. Linfoma tratado hace 5 años, sin recidiva desde hace 2 años. Hipertensión arterial (HTA) crónica de difícil manejo e insuficiencia mitral severa, con historia de disnea de medianos esfuerzos. Terapia habitual: carvedilol 6,25 mg/día, losartan 50 mg/día, espironolactona 25 mg/día, hidroclorotiazida 12,5 mg/día, amlodipino 5 mg/día. Mantenía controles médicos y de laboratorio en forma periódica. De sus exámenes previos, destacaba una creatinina basal de 1,2 mg/dl, clearence de creatinina 35-40 ml/min y electrocardiograma en ritmo sinusal.\n Examen físico: soporosa, sin déficit neurológico focal, presión arterial: 146/76 mmHg, pulso 30 a 40 por min, Sa02 >95%. Pulso venoso yugular normal. Examen cardíaco: ruidos regulares, soplo holosistólico intensidad III/VI en foco mitral. Sin signos congestivos pulmonares, sin edema de extremidades. Abdomen depresible e indoloro.\n \n Laboratorio al ingreso: electrocardiograma: ritmo idioventricular 50/min, trastorno de la conducción intraventricular mal definido con QRS 0,12 s y ondas T aumentadas de voltaje. Electrólitos plasmáticos: K: 8,4 mEq/l, Cl: 109 mEq/l, Na: 132 mEq/, pH 7,24, PCO2: 27, HCO3 de 12 mEq/, anion gap 10. BE: -14,4. Nitrógeno ureico 61 mg/dl, creatinina 2,63 mg/dl, hematocrito 33%, hemoglobina 0,7 mg/dl, glóbulos blancos 8.660, glicemia 137 mg/dl, troponinas T <0,01, orina completa normal. Radiografía de tórax sin congestión pulmonar. Ecocardiograma: mixomatosis mitral y tricuspídea, con prolapso mitral e insuficiencia mitral y tricuspídea severas, hipertrofia ventricular izquierda concéntrica leve con función sistólica normal, dilatación biauricular moderada.\n Evolución: no presentó diarrea durante la hospitalización. No hubo respuesta a las medidas médicas habituales para controlar la hiperkalemia, por lo que se efectuó hemodiálisis de emergencia después de su ingreso. Durante el procedimiento recuperó ritmo sinusal 102 por min, inicialmente hipertensa sistólica hasta 208/63 mmHg y luego con uso de propanolol mantuvo presiones normales, en estas circunstancias presentó angina de pecho con infradesnivel del segmento ST en el ECG y elevación de marcadores de daño miocárdico: CPK fracción MB hasta 8,3 mg/dl, TT hasta 0,072 y mioglobina hasta 384 mg/dl, el K había descendido a 4,7 mEq/L. Fracción excretada de Na 13%, fracción excretada de nitrógeno ureico: 16%. La paciente normalizó antes de las 24 h su potasio y diuresis, mantuvo cifras tensionales normales, con niveles de creatinina de 1,3 m/dl, nitrógeno ureico 24 mg/dl y fue dada de alta al quinto día en buenas condiciones.\n", "section_annotation": { "gold": [ { "end_offset": 743, "label": "PRESENT_ILLNESS", "segment": "Historia actual: mujer, 84 años, se mantenía en buenas condiciones generales, autovalente para sus actividades habituales. Ingresó el 31/12/04 a través de Servicio de Urgencia por presentar una semana antes un cuadro caracterizado por decaimiento y malestar general inespecífico. El día anterior a su ingreso presentó 3 episodios de deposiciones semilíquidas y dolor abdominal tipo cólico de intensidad leve. El día de su ingreso fue observada por su hijo médico en su domicilio quien la encontró comprometida de conciencia, con falta de reactividad a órdenes verbales, mirada fija, midriasis e hipoventilación que evoluciona a la apnea, por lo que fue sometida a reanimación básica, recuperando nivel de conciencia y ventilación espontánea.\n ", "start_offset": 0 }, { "end_offset": 1428, "label": "PAST_MEDICAL_HISTORY", "segment": "Antecedentes mórbidos: angina de pecho estable de varios años de evolución, accidente cerebrovascular cerebeloso sin secuelas, 5 años antes. Linfoma tratado hace 5 años, sin recidiva desde hace 2 años. 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Al examen físico se observó aumento de volumen de consistencia firme, fijo y levemente doloroso en la región maxilar superior derecha, con ocupación del vestíbulo superior derecho y extensión al paladar duro y blando derechos. La ecografía mostró una masa sólido-quística de contornos netos, de 7 x 5 x 5 cm, en relación a planos musculares faciales profundos de la región malar y que rellenaba seno maxilar. En el tomografía axial computada (TAC) de cavidades paranasales, se observó proceso expansivo, sólido quístico, a partir de la quinta pieza dental superior derecha, que ocupaba la totalidad del seno maxilar derecho, expandía y adelgazaba sus paredes, especialmente hacia fosa maxilar y pterigomaxilar, destruyendo la mitad ventral de cornetes nasales y ascendiendo el piso orbitario con abombamiento del paladar óseo hacia cavidad oral. Se realizó biopsia incisional, cuyo diagnóstico fue: quiste óseo aneurismático. A los 2 meses fue reintervenida extirpándose la masa tumoral que ocupaba todo el seno maxilar derecho, con destrucción de su pared anterior y medial, paladar óseo y reborde alveolar superior. Se realizó extracción amplia mediante maxilectomía de infraestructura, que consiste en la extirpación de las estructuras antes mencionadas, conservando el piso de la órbita. La pieza quirúrgica, macroscópicamente, presentaba una lesión expansiva, bien delimitada, compuesta por múltiples cavidades, separadas por tabiques pardo rojizos, rellenos por material hemático. El examen microscópico reveló la presencia de numerosos tabiques que separaban cavidades, sin revestimiento endotelial, de tamaño irregular y contenido hemático. Los tabiques tenían estroma fibroso, células gigantes multinucleadas, fibroblastos, signos de hemorragia antigua y áreas con tejido osteoide, sin evidencias de anaplasia. No se observó actividad mitótica. No se encontró coexistencia con otras lesiones. La paciente se mantiene en controles permanentes, evolucionando de manera favorable.\n \n", "section_annotation": { "gold": [ { "end_offset": 18, "label": "PRESENT_ILLNESS", "segment": "Mujer de 15 años, ", "start_offset": 0 }, { "end_offset": 44, "label": "PAST_MEDICAL_HISTORY", "segment": "sin antecedentes mórbidos ", "start_offset": 18 }, { "end_offset": 204, "label": "PRESENT_ILLNESS", "segment": "ni de traumatismo local, con aumento de volumen en mejilla y malar derecho de 6 meses previo a la consulta, tratada inicialmente como absceso de origen dental. ", "start_offset": 44 }, { "end_offset": 1130, "label": "EXPLORATION", "segment": "Al examen físico se observó aumento de volumen de consistencia firme, fijo y levemente doloroso en la región maxilar superior derecha, con ocupación del vestíbulo superior derecho y extensión al paladar duro y blando derechos. La ecografía mostró una masa sólido-quística de contornos netos, de 7 x 5 x 5 cm, en relación a planos musculares faciales profundos de la región malar y que rellenaba seno maxilar. En el tomografía axial computada (TAC) de cavidades paranasales, se observó proceso expansivo, sólido quístico, a partir de la quinta pieza dental superior derecha, que ocupaba la totalidad del seno maxilar derecho, expandía y adelgazaba sus paredes, especialmente hacia fosa maxilar y pterigomaxilar, destruyendo la mitad ventral de cornetes nasales y ascendiendo el piso orbitario con abombamiento del paladar óseo hacia cavidad oral. Se realizó biopsia incisional, cuyo diagnóstico fue: quiste óseo aneurismático. ", "start_offset": 204 }, { "end_offset": 1496, "label": "TREATMENT", "segment": "A los 2 meses fue reintervenida extirpándose la masa tumoral que ocupaba todo el seno maxilar derecho, con destrucción de su pared anterior y medial, paladar óseo y reborde alveolar superior. 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Al reiniciar su entrenamiento físico con la intención de participar en una triatlón, después de haber estado 2 meses sin una actividad física intensa, recorrió 45 kilómetros en bicicleta y luego ascendió hasta la cima de un cerro de 1.828 metros, bajo intenso calor ambiental e ingiriendo un escaso volumen de líquidos. Al bajar la montaña presentó mareos, dolor abdominal, náuseas, vómitos, diarrea,\n debilidad muscular y calambres musculares intensos en las extremidades. En el servicio de urgencia se lo hidrató, enviándolo posteriormente a su domicilio. Al día subsiguiente acudió al hospital por debilidad muscular, mialgias difusas, calambres y malestar general. Había orinado escasamente desde el día anterior. Existía una disminución de fuerzas en las extremidades y dolor a la palpación muscular. Los exámenes de ingreso mostraron azotemia y elevación de las enzimas musculares. La orina era rosada y el sedimento mostró 1 a 2 eritrocitos por campo. Se diagnosticó una insuficiencia renal aguda secundaria a una RML de esfuerzo y se trasladó a la unidad de cuidados intensivos. Allí recibió solución salina isotónica, bicarbonato y furosemide, recuperando rápidamente la diuresis. En los 9 días siguientes se obtuvo una recuperación paulatina de la función renal, sin emplearse diálisis, persistiendo las mialgias, los calambres y la elevación de las enzimas musculares. Fue dado de alta al décimoprimer día de hospitalización con azotemia leve (creatinina 1,43 mg/dl, uremia 51 mg/dl) y persistencia de una creatinquinasa (CK)-total elevada. Un mes después, estando con actividad física liviana, la función renal y la concentración de las enzimas musculares fue normal.\n \n", "section_annotation": { "gold": [ { "end_offset": 19, "label": "PRESENT_ILLNESS", "segment": "Hombre de 28 años, ", "start_offset": 0 }, { "end_offset": 28, "label": "PAST_MEDICAL_HISTORY", "segment": "soldado. 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Comenzó con dolor torácico retroesternal bajo, opresivo, irradiado a ambos hipocondrios y a espalda, por lo que decidió consultar en servicio de urgencia cinco horas después del inicio de los síntomas.\n Al examen físico estaba vígil, orientado, con presión arterial de 140/90, frecuencia cardiaca de 80 lat/min, con pulsos distales simétricos y normales, sin otros hallazgos relevantes.\n Un electrocardiograma practicado al paciente sólo demostró hipertrofia ventricular izquierda. La radiografía no presentó hallazgos relevantes.\n Debido a la persistencia del fuerte dolor torácico y para descartar disección aórtica, se solicitó una angiografía por tomografía axial computada de tórax y abdomen (Angio-Tac), que mostró flap de disección de aspecto agudo, que se extendía desde el tercio distal de la aorta descendente hasta el nivel de los hilios renales, con permeabilidad del falso lumen y signos de hemotórax menor y hemopericardio. Se diagnosticó entonces disección aórtica aguda tipo B, complicada por rotura.\n Debido a la complicación de la disección, anatomía favorable de la lesión y de los accesos vasculares, se decidió colocación de prótesis endovascular.\n Se realizó el procedimiento bajo anestesia general, con acceso a través de arterias femorales e hipotensión controlada, instalándose prótesis endovascular (Talent®) de 34 mm de diámetro y 130 mm de longitud en la aorta torácica con resultado técnico adecuado, cobertura de sitio de fractura proximal y sin complicaciones inmediatas.\n En estudio de control se comprobó adecuada posición de endoprótesis con exclusión del falso lumen de la aorta torácica, sólo con permeabilidad de éste distal a origen de arteria mesentérica inferior, el que no había aumentado con respecto a examen de ingreso. Los accesos vasculares no presentaban complicaciones. Se decidió el alta cinco días después del procedimiento, con el paciente en buenas condiciones.\n En control un año después del procedimiento, el paciente se encontraba en buenas condiciones generales, con Angio-Tac que no demostró complicaciones en la endoprótesis, con exclusión total del falso lumen torácico y sin variaciones con respecto a examen de alta.\n \n", "section_annotation": { "gold": [ { "end_offset": 39, "label": "PRESENT_ILLNESS", "segment": "Paciente de sexo masculino de 59 años, ", "start_offset": 0 }, { "end_offset": 78, "label": "PAST_MEDICAL_HISTORY", "segment": "hipertenso, tabáquico y dislipidémico. ", "start_offset": 39 }, { "end_offset": 281, "label": "PRESENT_ILLNESS", "segment": "Comenzó con dolor torácico retroesternal bajo, opresivo, irradiado a ambos hipocondrios y a espalda, por lo que decidió consultar en servicio de urgencia cinco horas después del inicio de los síntomas.\n ", "start_offset": 78 }, { "end_offset": 1096, "label": "EXPLORATION", "segment": "Al examen físico estaba vígil, orientado, con presión arterial de 140/90, frecuencia cardiaca de 80 lat/min, con pulsos distales simétricos y normales, sin otros hallazgos relevantes.\n Un electrocardiograma practicado al paciente sólo demostró hipertrofia ventricular izquierda. La radiografía no presentó hallazgos relevantes.\n Debido a la persistencia del fuerte dolor torácico y para descartar disección aórtica, se solicitó una angiografía por tomografía axial computada de tórax y abdomen (Angio-Tac), que mostró flap de disección de aspecto agudo, que se extendía desde el tercio distal de la aorta descendente hasta el nivel de los hilios renales, con permeabilidad del falso lumen y signos de hemotórax menor y hemopericardio. Se diagnosticó entonces disección aórtica aguda tipo B, complicada por rotura.\n ", "start_offset": 281 }, { "end_offset": 1582, "label": "TREATMENT", "segment": "Debido a la complicación de la disección, anatomía favorable de la lesión y de los accesos vasculares, se decidió colocación de prótesis endovascular.\n Se realizó el procedimiento bajo anestesia general, con acceso a través de arterias femorales e hipotensión controlada, instalándose prótesis endovascular (Talent®) de 34 mm de diámetro y 130 mm de longitud en la aorta torácica con resultado técnico adecuado, cobertura de sitio de fractura proximal y sin complicaciones inmediatas.\n ", "start_offset": 1096 }, { "end_offset": 1896, "label": "EXPLORATION", "segment": "En estudio de control se comprobó adecuada posición de endoprótesis con exclusión del falso lumen de la aorta torácica, sólo con permeabilidad de éste distal a origen de arteria mesentérica inferior, el que no había aumentado con respecto a examen de ingreso. Los accesos vasculares no presentaban complicaciones. ", "start_offset": 1582 }, { "end_offset": 2258, "label": "EVOLUTION", "segment": "Se decidió el alta cinco días después del procedimiento, con el paciente en buenas condiciones.\n En control un año después del procedimiento, el paciente se encontraba en buenas condiciones generales, con Angio-Tac que no demostró complicaciones en la endoprótesis, con exclusión total del falso lumen torácico y sin variaciones con respecto a examen de alta.\n \n", "start_offset": 1896 } ] } }
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La sintomatología se había exacerbado en el último año, después del nacimiento de su segundo hijo. Junto a lo anterior, golpeaba a su hija, por lo que el marido le sugirió consultar. Fue derivada a la Unidad de Psiquiatría por la pesquisa que hizo el médico general del antecedente de abuso sexual infantil, que hasta esa fecha la paciente había silenciado.\n Antecedentes. Fue golpeada durante su infancia por un padre alcohólico, quién abusó de ella con caricias sexuales sin penetración, desde los 10 años hasta los 15, cuando abandonó el colegio y se trasladó a otra ciudad a trabajar como asesora del hogar. En la primera casa donde trabajó fue violada por el hijo de la patrona. Esta experiencia traumática la silenció por susto, vergüenza y culpa. Posteriormente presentó angustia, pesadillas e imágenes intrusivas de la violación que cedieron espontáneamente al mes, con el abandono del lugar de trabajo. Estos síntomas se reactivaron un año después, cuando divisó casualmente en la calle al victimario y nuevamente cedieron espontáneamente con el regreso de la paciente a su lugar de origen.\n Se casó e inició sin problemas su vida sexual. Durante su primer embarazo comenzó a presentar angustia relacionada con la idea de tener una hija, a la que le podría suceder lo mismo que a ella, es decir ser violada. La angustia aumentó cuando nació ésta, agregándose en el puerperio anhedonia, intolerancia, irritabilidad y labilidad emocional, síntomas por los cuales no consultó.\n Al reiniciar su vida sexual, después del parto, en una oportunidad en que el marido estaba bajo el efecto del alcohol, reaparecieron imágenes y percepciones olfativas de cuando el padre abusaba sexualmente de ella. La paciente volvió a «sentir el olor de su padre» cerca de ella. Antes de este episodio tenía recuerdos borrosos del abuso sufrido en su niñez. Después de este incidente, las imágenes del abuso infantil se presentaron egodistónicamente cada vez que tenía relaciones sexuales. Además, aparecieron síntomas de hipervigilancia y conductas evitativas en relación a la vida sexual, originándose una frigidez secundaria con serios problemas en la relación de pareja.\n La violación y la disfunción sexual no habían sido develadas por la paciente. Un ejemplo de lo anterior se constata en su ficha clínica, en una consulta a ginecología previa a su matrimonio por un fibroadenoma mamario, el médico que la atendió en esa oportunidad consignó en los antecedentes: nulípara sin relaciones sexuales, sin referencia a sus antecedentes traumáticos sexuales.\n Evolución y tratamiento. La paciente experimentó un gran alivio cuando el médico general le preguntó por el antecedente de abuso sexual. Uno de los aspectos que más la habían angustiado durante su vida era el miedo de que otras personas, incluyendo su marido, supiesen de su historia traumática sexual, pues se imaginaba que sería rechazada y enjuiciada, lo que para su alivio no ocurrió.\n Con el equipo de la especialidad habló de sus otros antecedentes traumáticos. Posteriormente a la tercera intervención, la paciente refirió sus traumas a su marido, quien no sólo la comprendió sino que también le brindó apoyo. Después de este acontecimiento la paciente mejoró sustancialmente, remitieron los síntomas depresivos, la disfunción sexual y el maltrato a su hija.\n Asistió en total a cinco controles en la Unidad de Psiquiatría en los que se constató su mejoría. Durante ese tiempo se la trató con fluoxetina 20 mg/día y meleril 25 mg/día. 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Después de este incidente, las imágenes del abuso infantil se presentaron egodistónicamente cada vez que tenía relaciones sexuales. Además, aparecieron síntomas de hipervigilancia y conductas evitativas en relación a la vida sexual, originándose una frigidez secundaria con serios problemas en la relación de pareja.\n La violación y la disfunción sexual no habían sido develadas por la paciente. Un ejemplo de lo anterior se constata en su ficha clínica, en una consulta a ginecología previa a su matrimonio por un fibroadenoma mamario, el médico que la atendió en esa oportunidad consignó en los antecedentes: nulípara sin relaciones sexuales, sin referencia a sus antecedentes traumáticos sexuales.\n ", "start_offset": 674 }, { "end_offset": 3725, "label": "EVOLUTION", "segment": "Evolución y tratamiento. La paciente experimentó un gran alivio cuando el médico general le preguntó por el antecedente de abuso sexual. 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Enfermedad actual: comenzó el 4/6/04 con dolor precordial opresivo. Se diagnosticó infarto agudo de miocardio y recibió tratamiento fibrinolítico sistémico con estreptoquinasa. Reapareció angor, realizándose cineangiocoronariografía (CACG) de urgencia donde se observaron arterias coronarias sin lesiones significativas. En forma inmediata al inicio del procedimiento, el paciente presentó frialdad intensa y dolor en ambos miembros inferiores de predominio distal, con cianosis de dedos de los pies. Concomitantemente apareció epigastralgia, náuseas y vómitos.\n Al examen destacaba cianosis de dedos de pies, con necrosis seca en 3º, 4º y 5º dedos derechos y 3º y 5º dedos izquierdos.\n \n Examen cardiovascular: ritmo irregular 110 lpm, pulsos distales conservados, simétricos en 4 miembros.\n Exámenes de laboratorio. Azoemia: 140 mg/dL. Creatininemia: 5,8 mg/dL (función renal 3 meses previos normal). Depuración de creatinina: 11 ml/min. Hemograma, ionograma sanguíneo y glicemia: normales. Examen de orina: densidad 1015; proteínas 2,09 g/L; hematíes+++; leucocitos++. Antígeno prostático específico: 2,4 ng/mL. Ecografía aparato urinario: tamaño renal y espesor parenquimatoso conservados, leve dilatación pielocalicial izquierda, hipertrofia prostática grado III. ECG: fibrilación auricular con frecuencia promedio de 90 lpm. Radiografía de tórax: normal. Ecocardiograma: hipertrofia ventricular izquierda, dilatación de aurícula izquierda, fracción de eyección ventricular izquierda: 57%. Doppler arterial miembros inferiores: lesiones hemodinámicamente significativas en sector ilíaco y femoral común, bilaterales; arterias distales sin lesiones significativas. Colonoscopia: edema y lesiones ulceradas superficiales cubiertas por fibrina, desde recto bajo hasta sigmoides proximal, donde las lesiones eran más extensas e impidieron proseguir el estudio (aspecto de colitis isquémica). Biopsia de colon sigmoides: sin elementos de especificidad. Gastroscopia: lesiones ulceradas en cara anterior y posterior de duodeno. Fondo de ojo: embolias colesterínicas en retina izquierda. Biopsia de piel: cristales de colesterol ocluyendo la luz de vasos de mediano calibre; trombosis vascular en vasos de pequeño calibre.\n \n Evolución y tratamiento. En la evolución, destacó episodio de hemorragia digestiva masiva (reiterado en dos oportunidades) que requirió uso de tranfusiones; posteriormente, diarrea mantenida. Esto impidió su traslado para realización de angiorresonancia magnética para evaluación de aorta torácica y abdominal. A nivel ocular, presentó gran disminución de agudeza visual. Hubo franco empeoramiento del dolor de ambos miembros inferiores, llegando a requerir opiáceos, por lo que se decidió realizar simpaticectomía lumbar unilateral, con criterio analgésico, con resultado favorable.\n Bajo tratamiento médico, se logró estabilización de cifras de creatinina, destacando el difícil manejo de la HTA, que requirió de múltiples fármacos.\n Como tratamiento tentativo de la enfermedad de base, se inició terapia anticoagulante (enoxaparina 1 mg/kg peso corporal cada 12 h) y corticoides (prednisona 0,5 mg/kg peso corporal), debiendo ser suspendida por la hemorragia digestiva relatada.\n Evolución a los 6 meses. En el control: hubo caída espontánea de falanges distales del tercer dedo de ambos pies y quinto dedo de pie izquierdo, estabilización de las cifras de insuficiencia renal. Azoemia: 80 mg/dL. Creatininemia: 2,5 mg/dL. 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En 2000 debutó con una falla renal, ingresando a hemodiálisis crónica. En los 5 años siguientes tuvo múltiples oclusiones de sus accesos vasculares, practicándose fístulas arteriovenosas radiocefálicas y braquiales bilaterales, instalación de prótesis axilohumerales bilaterales de politetrafluoretileno (PTFE) y numerosos catéteres transitorios y tunelizados en posiciones yugular, subclavia y femoral. En 2003 se determinó el tiempo de protrombina, TTPK, anticoagulante lúpico, VDRL, antitrombina III y anticuerpos anticardiolipina IgG e IgM, los que fueron normales o negativos. En 2004 se diagnosticó una diabetes mellitus 2.\n En marzo de 2005 recibió un riñón de donante cadáver, con el que compartía 2 antígenos DR y presentaba incompatibilidades en los 2 antígenos A y B. Su reactividad histórica y previa al trasplante frente a linfocitos de panel era 0%. Hubo un sangrado intraoperatorio abundante, usaba clopidogrel para evitar la oclusión de los catéteres. Recibió glóbulos rojos, plaquetas, plasma fresco congelado e inmunosupresión con ciclosporina (CsA), micofenolato (MMF) y esteroides. Evolucionó con una necrosis tubular aguda, hemodializándose en 6 ocasiones durante los primeros 14 días. Recibió insulina, y por no tener anticuerpos de tipo IgG anti CMV utilizó ganciclovir endovenoso y luego valganciclovir (VGC) oral. Como complicaciones tuvo una infección urinaria y un urinoma, que requirió de drenaje quirúrgico. Egresó a los 34 días, con una creatinina de 1,6 mg/dl. Una semana después, notó edema de la extremidad superior derecha, tos y disnea de esfuerzos. Una ecotomografía doppler reveló una trombosis de la vena axilar derecha y un cintigrama pulmonar mostró imagen compatible con una embolia pulmonar. Inició terapia con heparina de bajo peso molecular y luego acenocumarol. Egresó 2 semanas más tarde con una creatinina de 1,6 mg/dl y un clearence de creatinina de 35 ml/min.\n A los cuatro meses del trasplante renal (TxR) y días después de reducir la dosis de MMF desde 1.500 a 500 mg/día por leucopenia, utilizando prednisona 10 mg y CsA 80 mg (obteniendo una concentración sanguínea de 504 ng/ml a las 2 h de ingerida) la creatinina se elevó a 4,9 mg/dl, el clearence de creatinina cayó a 8,7 ml/min y apareció proteinuria de 14,9 g/día. Se diagnosticó un rechazo agudo. No se practicó una biopsia renal por estar bajo terapia anticoagulante. Se trató con metilprednisolona por 3 días, descendiendo la creatinina a 1,7 mg/dl y la proteinuria a 780 mg/día, elevándose el clearence de creatinina a 40 ml/min. La antigenemia para CMV fue negativa. Egresó con el mismo esquema inmunosupresor.\n Once semanas después, recibiendo MMF 1.000 mg, CsA 70 mg (obteniendo un nivel de 457 ng/ml a la segunda hora de ingerida) y prednisona 10 mg, hizo un nuevo rechazo agudo, tratándose con pulsos de metilprednisolona, descendiendo la creatinina desde 2,9 a 1,6 mg/dl. Posterior a ello se cambió la CsA por tacrolimus (TCR) 4 mg c/12 h (obteniendo un nivel de 8 ng/ml) y se reinició el VGC por aparición de febrículas asociadas a una antigenemia (+). A los 7 meses del TxR y a los 6 meses de iniciada la terapia anticoagulante, ésta se suspendió, de acuerdo a lo programado a su inicio. Egresó con una creatinina de 1,6 mg/dl. Dos días más tarde, 12 días después de la suspensión del anticoagulante, cayó bruscamente en anuria. Una ecotomografía doppler no evidenció flujo arterial y un cintigrama no mostró perfusión renal. Se planteó una trombosis de la arteria renal. Se instalaron nuevos catéteres tunelizados por vía femoral derecha e inició hemodiálisis. Tres días después se efectuó una biopsia renal que mostró un infarto renal y posteriormente se efectuó una nefrectomía. Se confirmó la trombosis de la arteria renal con infarto de todo el injerto, y se observó un infiltrado intersticial compatible con un rechazo leve. Frente a la sospecha de una trombofilia como causa de la trombosis arterial, se tomaron muestras para confirmar dicha hipótesis. Los niveles de antitrombina III, resistencia a la proteína C activada, factor V Leiden, mutación del gen G20210A de la protrombina, proteína S, anticoagulante lúpico, anticuerpos anticardiolipinas IgG e IgM fueron normales o negativos. La actividad de la PrC fue de sólo 39,1% (VN: 72-106%) y los niveles de homocisteína total estuvieron levemente elevados 16,6 umol/L (VN: 4,5-11).\n Días después presentó una trombosis de la vena femoral común y profunda derechas. 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Como consecuencia de la cirugía, la paciente desarrolló un hipoparatiroidismo definitivo. Se indicó suplemento de calcio y vitamina D, tratamiento que la paciente cumplió de forma muy irregular y sin controles de laboratorio.\n Quince años más tarde, en 1999, consultó en nuestro hospital por calambres, parestesias y espasmos faciales, además de signos de Chvostek y Trousseau manifiestos. Se reinició el tratamiento con calcio y vitamina D y se solicitó exámenes de calcemia, T4 y TSH. La paciente no regresó a control.\n Reapareció en noviembre de 2003, sin tratamiento. Presentaba marcado compromiso del estado general, astenia, debilidad muscular, calambres, parestesias y cefalea. Sus menstruaciones eran abundantes. En el examen físico destacaban facies hipotiroidea, cicatriz de la tiroidectomía, pulso regular 70x', presión arterial 110/70 mmHg, palidez y signos de Chvostek y Trousseau; el examen cardiopulmonar y abdominal eran normales.\n Sus exámenes revelaron: calcemia 7,98 mg/dL (probable error de laboratorio, por discordancia con la clínica y calcemias posteriores), fosfemia 6,2 mg/dL, BUN 14 mg/dL, proteína total 6,6 g/dL, albuminemia 3,7 g/dL, hematocrito 27%, hemoglobina 6,7 g/dL, microcitosis e hipocromía, TSH 9,7 µU/ml (vn: 0,4-4,8).\n Con diagnóstico de hipoparatiroidismo e hipotiroidismo postiroidectomía y anemia ferropriva, se indicó tratamiento con Elcal D Forte® (carbonato de calcio 1.125 mg + vitamina D 175 UI) 1, Elcal® (carbonato de calcio 800 mg) 1, levotiroxina 50 µg y sulfato ferroso 400 mg/día.\n Dos semanas después, la paciente se presentó con disnea a mínimos esfuerzos, dolor epigástrico, náuseas y edema de rápida progresión. En el examen físico se encontraba afebril, con frecuencia cardíaca 70x' regular, presión arterial 100/70 mmHg, ortopnea, edema generalizado, ingurgitación yugular, estertores pulmonares, ruidos cardíacos apagados, no se auscultaron soplos, hepatomegalia sensible 4 cm bajo el reborde costal. No presentaba signos de trombosis venosa profunda.\n Se le indicó hospitalización. En sus exámenes de ingreso destacaba: radiografía de tórax: cardiomegalia y congestión pulmonar. ECG: ritmo sinusal, 83x', bajo voltaje generalizado, intervalo QT prolongado y alteraciones inespecíficas de la repolarización ventricular. Ecocardiograma: marcada dilatación, disfunción sistólica y disfunción diastólica de tipo restrictivo del ventrículo izquierdo, severa insuficiencia mitral y tricuspídea, hipertensión pulmonar sistólica moderada, derrame pericárdico moderado y dilatación de aurícula izquierda. Ecotomografía abdominal: hepatomegalia congestiva. Endoscopia digestiva alta: gastritis hiperémica. Calcemia 2,9 mg/dL, parathormona 5,9 ng/l (vn: 10-73), magnesio 1,08 mEq/l (vn: 1,4-2,1), albúmina 3,3 g/dL, sodio 140 mEq/l, potasio 2,3 mEq/l, hematocrito 26%, hemoglobina 7,4 g/dL, proteinuria de 24 h: negativa, bilirrubinemia total 1,3 mg/dL, transaminasas glutámico oxalacéticas 63 U/l (vn: <35), creatinfosfokinasa total 1.260 U/l (vn: <70) (fracción miocárdica 3%), TSH 18,1 µU/ml.\n \n Se planteó el diagnóstico de insuficiencia cardíaca congestiva secundaria a hipocalcemia severa, descompensada por sustitución con hormona tiroidea y agravada por anemia ferropriva.\n Se trató con gluconato de calcio 1 g iv c/12 h, carbonato de calcio 2 g vo, vitamina D 175 µ/día, vitamina D 300.000 UI por una vez, l-tiroxina 100 µg, sulfato ferroso 400 mg, furosemida 40 mg, cloruro de potasio 1,8 g, captopril 12,5 mg y digoxina 0,125 mg/día.\n La paciente evolucionó favorablemente, con diuresis intensa y mejoría de las manifestaciones de insuficiencia cardíaca, desaparición del edema y la hepatomegalia. Diez días después tenía calcemia de 6 mg/dL, hematocrito de 37% y en ecocardiograma de control, se observó reducción del grado del reflujo mitral y tricuspídeo, disminución de la presión sistólica de la arteria pulmonar de 50 a 33 mmHg (vn: 15-30) y del derrame pericárdico. En controles posteriores, hasta los 18 meses, la paciente cumplía rigurosamente el tratamiento, sólo presentaba disnea a esfuerzos medianos a mayores, su calcemia se mantenía entre 8 y 8,5 mg/dL y en seguimiento ecocardiográfico, se observó, además, una recuperación de la marcada disfunción diastólica inicial -evaluada por el índice E/A: relación entre fase de llene ventricular rápido (E) y la fase de llene relacionada a la contracción auricular (A)-, normalización del tamaño de la aurícula izquierda y desaparición del derrame pericárdico, persistiendo la dilatación y disfunción sistólica del ventrículo izquierdo, en grado similar a la observada en exámenes iniciales.\n \n", "section_annotation": { "gold": [ { "end_offset": 18, "label": "PRESENT_ILLNESS", "segment": "Mujer de 37 años, ", "start_offset": 0 }, { "end_offset": 1690, "label": "PAST_MEDICAL_HISTORY", "segment": "procedente de Puerto Aisén, con antecedente de tiroidectomía realizada a los 18 años de edad, a causa de un bocio difuso hipertiroideo. Como consecuencia de la cirugía, la paciente desarrolló un hipoparatiroidismo definitivo. Se indicó suplemento de calcio y vitamina D, tratamiento que la paciente cumplió de forma muy irregular y sin controles de laboratorio.\n Quince años más tarde, en 1999, consultó en nuestro hospital por calambres, parestesias y espasmos faciales, además de signos de Chvostek y Trousseau manifiestos. Se reinició el tratamiento con calcio y vitamina D y se solicitó exámenes de calcemia, T4 y TSH. La paciente no regresó a control.\n Reapareció en noviembre de 2003, sin tratamiento. Presentaba marcado compromiso del estado general, astenia, debilidad muscular, calambres, parestesias y cefalea. Sus menstruaciones eran abundantes. En el examen físico destacaban facies hipotiroidea, cicatriz de la tiroidectomía, pulso regular 70x', presión arterial 110/70 mmHg, palidez y signos de Chvostek y Trousseau; el examen cardiopulmonar y abdominal eran normales.\n Sus exámenes revelaron: calcemia 7,98 mg/dL (probable error de laboratorio, por discordancia con la clínica y calcemias posteriores), fosfemia 6,2 mg/dL, BUN 14 mg/dL, proteína total 6,6 g/dL, albuminemia 3,7 g/dL, hematocrito 27%, hemoglobina 6,7 g/dL, microcitosis e hipocromía, TSH 9,7 µU/ml (vn: 0,4-4,8).\n Con diagnóstico de hipoparatiroidismo e hipotiroidismo postiroidectomía y anemia ferropriva, se indicó tratamiento con Elcal D Forte® (carbonato de calcio 1.125 mg + vitamina D 175 UI) 1, Elcal® (carbonato de calcio 800 mg) 1, levotiroxina 50 µg y sulfato ferroso 400 mg/día.\n ", "start_offset": 18 }, { "end_offset": 1824, "label": "PRESENT_ILLNESS", "segment": "Dos semanas después, la paciente se presentó con disnea a mínimos esfuerzos, dolor epigástrico, náuseas y edema de rápida progresión. ", "start_offset": 1690 }, { "end_offset": 3387, "label": "EXPLORATION", "segment": "En el examen físico se encontraba afebril, con frecuencia cardíaca 70x' regular, presión arterial 100/70 mmHg, ortopnea, edema generalizado, ingurgitación yugular, estertores pulmonares, ruidos cardíacos apagados, no se auscultaron soplos, hepatomegalia sensible 4 cm bajo el reborde costal. No presentaba signos de trombosis venosa profunda.\n Se le indicó hospitalización. En sus exámenes de ingreso destacaba: radiografía de tórax: cardiomegalia y congestión pulmonar. ECG: ritmo sinusal, 83x', bajo voltaje generalizado, intervalo QT prolongado y alteraciones inespecíficas de la repolarización ventricular. Ecocardiograma: marcada dilatación, disfunción sistólica y disfunción diastólica de tipo restrictivo del ventrículo izquierdo, severa insuficiencia mitral y tricuspídea, hipertensión pulmonar sistólica moderada, derrame pericárdico moderado y dilatación de aurícula izquierda. Ecotomografía abdominal: hepatomegalia congestiva. Endoscopia digestiva alta: gastritis hiperémica. Calcemia 2,9 mg/dL, parathormona 5,9 ng/l (vn: 10-73), magnesio 1,08 mEq/l (vn: 1,4-2,1), albúmina 3,3 g/dL, sodio 140 mEq/l, potasio 2,3 mEq/l, hematocrito 26%, hemoglobina 7,4 g/dL, proteinuria de 24 h: negativa, bilirrubinemia total 1,3 mg/dL, transaminasas glutámico oxalacéticas 63 U/l (vn: <35), creatinfosfokinasa total 1.260 U/l (vn: <70) (fracción miocárdica 3%), TSH 18,1 µU/ml.\n \n Se planteó el diagnóstico de insuficiencia cardíaca congestiva secundaria a hipocalcemia severa, descompensada por sustitución con hormona tiroidea y agravada por anemia ferropriva.\n ", "start_offset": 1824 }, { "end_offset": 3651, "label": "TREATMENT", "segment": "Se trató con gluconato de calcio 1 g iv c/12 h, carbonato de calcio 2 g vo, vitamina D 175 µ/día, vitamina D 300.000 UI por una vez, l-tiroxina 100 µg, sulfato ferroso 400 mg, furosemida 40 mg, cloruro de potasio 1,8 g, captopril 12,5 mg y digoxina 0,125 mg/día.\n ", "start_offset": 3387 }, { "end_offset": 3814, "label": "EVOLUTION", "segment": "La paciente evolucionó favorablemente, con diuresis intensa y mejoría de las manifestaciones de insuficiencia cardíaca, desaparición del edema y la hepatomegalia. 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", "start_offset": 3814 }, { "end_offset": 4240, "label": "EVOLUTION", "segment": "En controles posteriores, hasta los 18 meses, la paciente cumplía rigurosamente el tratamiento, sólo presentaba disnea a esfuerzos medianos a mayores, ", "start_offset": 4089 }, { "end_offset": 4768, "label": "EXPLORATION", "segment": "su calcemia se mantenía entre 8 y 8,5 mg/dL y en seguimiento ecocardiográfico, se observó, además, una recuperación de la marcada disfunción diastólica inicial -evaluada por el índice E/A: relación entre fase de llene ventricular rápido (E) y la fase de llene relacionada a la contracción auricular (A)-, normalización del tamaño de la aurícula izquierda y desaparición del derrame pericárdico, persistiendo la dilatación y disfunción sistólica del ventrículo izquierdo, en grado similar a la observada en exámenes iniciales.\n \n", "start_offset": 4240 } ] } }
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La biopsia quirúrgica informó un CPT bifocal, variedad usual, con foco de 20 mm en lóbulo derecho y 15 mm en lóbulo izquierdo, sin permea-ción vascular, infiltración de cápsula ni compromiso de borde quirúrgico. Recibió 150 mCi I131 y la exploración sistémica posdosis mostró remanente tiroideo con compromiso ganglionar derecho. Inició terapia supresiva con levotiroxina y en controles posteriores presentó niveles de Tg indetectables (<0,2 ng/ml) en ausencia de AcTg y las ecografías cervicales no mostraron evidencias de recidiva tumoral. En control de los 18 meses poscirugía la ecografía cervical mostró imagen nodular de 10 mm en región cervical derecha, sugerente de linfonodo. En forma simultánea, la Tg-s estimulada (TSH =105 uUI/mL) fue <0,2 ng/ml, en ausencia de AcTg. La exploración sistémica mostró captación aumentada en compartimento central a ambos lados de línea media, mayor a derecha. La biopsia por punción de la lesión fue compatible con CPT. Se realizó disección cervical, cuya biopsia confirmó metástasis de CPT en ganglio del grupo VI, intrano-dal, sin extensión al tejido adiposo. La tinción para Tg fue positiva en forma difusa tanto en coloide como en citoplasma de células tumorales.\n", "section_annotation": { "gold": [ { "end_offset": 37, "label": "PRESENT_ILLNESS", "segment": "Paciente de 36 años, sexo masculino, ", "start_offset": 0 }, { "end_offset": 99, "label": "PAST_MEDICAL_HISTORY", "segment": "con antecedente de tiroidectomía total 2 años antes, por CPT. ", "start_offset": 37 }, { "end_offset": 311, "label": "EXPLORATION", "segment": "La biopsia quirúrgica informó un CPT bifocal, variedad usual, con foco de 20 mm en lóbulo derecho y 15 mm en lóbulo izquierdo, sin permea-ción vascular, infiltración de cápsula ni compromiso de borde quirúrgico. ", "start_offset": 99 }, { "end_offset": 332, "label": "TREATMENT", "segment": "Recibió 150 mCi I131 ", "start_offset": 311 }, { "end_offset": 429, "label": "EXPLORATION", "segment": "y la exploración sistémica posdosis mostró remanente tiroideo con compromiso ganglionar derecho. ", "start_offset": 332 }, { "end_offset": 471, "label": "TREATMENT", "segment": "Inició terapia supresiva con levotiroxina ", "start_offset": 429 }, { "end_offset": 568, "label": "EVOLUTION", "segment": "y en controles posteriores presentó niveles de Tg indetectables (<0,2 ng/ml) en ausencia de AcTg ", "start_offset": 471 }, { "end_offset": 1063, "label": "EXPLORATION", "segment": "y las ecografías cervicales no mostraron evidencias de recidiva tumoral. En control de los 18 meses poscirugía la ecografía cervical mostró imagen nodular de 10 mm en región cervical derecha, sugerente de linfonodo. En forma simultánea, la Tg-s estimulada (TSH =105 uUI/mL) fue <0,2 ng/ml, en ausencia de AcTg. 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Consultó por aumento de volumen en labio superior lado izquierdo. La paciente señaló que la lesión había crecido lentamente desde aproximadamente 1 año desde que ella lo detectó. A la inspección clínica se observó el labio con aumento de volumen nodular, irregular, globuloso (como racimo), de aproximadamente 2 cm de diámetro mayor, indoloro, y de consistencia firme a la palpación, de límites más o menos difusos y recubierto por mucosa de aspecto normal. En la anamnesis no se pesquisaron otros procesos ni antecedentes mórbidos relevantes.\n \n Con la hipótesis diagnóstica de adenoma pleomorfo, se procedió a realizar la biopsia excisional bajo anestesia local. Se logró extraer toda la tumoración además de tejido adyacente, ya que si bien se observaba algo de fibrosis periférica, ésta se entremezclaba con el tejido conjuntivo y capa muscular de los labios. La muestra fue enviada a análisis histopatológico.\n El informe histopatológico reveló la presencia de proliferación bien delimitada, pero no capsulada, de un tejido compuesto por vasos sanguíneos de paredes engrosadas, entremezclados con un infiltrado linfocitario que se disponía a manera de\n folículos con centros germinativos, además de presencia destacada de eosinófilos. El tejido presentaba múltiples tabicaciones por haces de fibras colágenas. El diagnóstico histopatológico correspondió a hiperplasia angiolinfoidea con eosinofilia. Los valores de los distintos parámetros del hemograma estaban dentro de los rangos normales.\n \n La paciente fue controlada a los 10 días y se procedió al retiro de la sutura. Luego se volvió a controlar al mes y 6 meses de realizada la cirugía, sin observarse recidiva.\n", "section_annotation": { "gold": [ { "end_offset": 320, "label": "PRESENT_ILLNESS", "segment": "Paciente mujer de 36 años que acudió a la Unidad Dental del Centro de Referencia de Salud de Peñalolén, Cordillera Oriente, Santiago, Chile. Consultó por aumento de volumen en labio superior lado izquierdo. La paciente señaló que la lesión había crecido lentamente desde aproximadamente 1 año desde que ella lo detectó. ", "start_offset": 0 }, { "end_offset": 688, "label": "EXPLORATION", "segment": "A la inspección clínica se observó el labio con aumento de volumen nodular, irregular, globuloso (como racimo), de aproximadamente 2 cm de diámetro mayor, indoloro, y de consistencia firme a la palpación, de límites más o menos difusos y recubierto por mucosa de aspecto normal. 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La paciente reconsultó en el servicio de urgencia al día siguiente por persistencia de epigastralgia, realizándose una ecotomografía abdominal que evidenció una lesión quística retroperitoneal. La tomografía axial computarizada (TAC), reveló una masa quística multitabicada de 44 x 26 mm, bien delimitada, que contactaba caudalmente con el cuerpo del páncreas.\n \n La paciente fue sometida a una laparotomía exploradora subcostal bilateral, encontrándose la lesión, descrita en la TAC, íntimamente adherida al páncreas, por lo que se debió realizar una pancreatectomía distal junto a la resección del quiste, enviándose la pieza a anatomía patológica.\n \n Hallazgos patológicos\n \n El páncreas mostraba acinos e islotes pancreáticos de arquitectura normal. Se identificaban además dos ganglios linfáticos peripancreáticos sin alteraciones.\n El diagnóstico histológico fue compatible con un quiste broncogénico retroperitoneal. La paciente evolucionó favorablemente en el posopera-torio, siendo dada de alta al décimo día posoperatorio.\n", "section_annotation": { "gold": [ { "end_offset": 27, "label": "PRESENT_ILLNESS", "segment": "Paciente mujer de 24 años, ", "start_offset": 0 }, { "end_offset": 68, "label": "PAST_MEDICAL_HISTORY", "segment": "sin antecedentes mórbidos de relevancia, ", "start_offset": 27 }, { "end_offset": 481, "label": "PRESENT_ILLNESS", "segment": "que consultó en el Servicio de Urgencia de nuestro hospital en junio de 2005, con un cuadro de 3 h de evolución, caracterizado por dolor abdominal epigástrico, de carácter sordo, de moderada intensidad, que cedió con antiespasmó-dicos y bloqueadores de la bomba de protones, siendo dada de alta a su domicilio. 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"start_offset": 3078 }, { "boundary": null, "end_offset": 3100, "span": "permaneciendo", "start_offset": 3087 }, { "boundary": null, "end_offset": 3113, "span": "asintomático", "start_offset": 3101 }, { "boundary": null, "end_offset": 3115, "span": "a", "start_offset": 3114 }, { "boundary": null, "end_offset": 3117, "span": "6", "start_offset": 3116 }, { "boundary": null, "end_offset": 3123, "span": "meses", "start_offset": 3118 }, { "boundary": null, "end_offset": 3126, "span": "de", "start_offset": 3124 }, { "boundary": null, "end_offset": 3129, "span": "su", "start_offset": 3127 }, { "boundary": null, "end_offset": 3137, "span": "egreso.", "start_offset": 3130 }, { "boundary": null, "end_offset": 3140, "span": "\n \n", "start_offset": 3137 } ] }, "note_id": "S0034-98872007000800013-1", "note_text": "Paciente de sexo masculino de 78 años de edad, con antecedente de alcoholismo desde hacía 10 años. Ingresó a la Unidad de Emergencia del Complejo Asistencial Barros Luco (CABL) con historia de una semana de evolución, caracterizada por dolor en muslo y cadera derecha, progresivo en intensidad. El día de su ingreso al hospital se asoció a dolor abdominal en el cuadrante inferior ipsilateral y a un episodio de lipotimia. No presentaba antecedentes de trauma abdominal ni otras enfermedades asociadas. En el examen físico de ingreso destacaba una presión arterial de 80/54 mmHg, pulso 78 x', coloración lívida de la zona infraumbilical de la pared abdominal y de las extremidades inferiores. Se aportaron entonces 1.000 ce de solución cristaloide intravenosa que permitieron normalizar la presión arterial. El abdomen aparecía distendido, con dolor intenso a la palpación superficial y profunda en hipocondrio, flanco y fosa ilíaca derecha. Presentaba, además, dolor de rebote difuso, resistencia muscular difusa y puño percusión derecha positiva. En los exámenes de laboratorio de ingreso se obtuvo: glicemla de 250 mg/dl, nitrógeno ureico de 17 mg/dl, creatininemia de 1,17 mg/dl, amilasa 86 U/1, lipasa 40 U/1, proteína C reactiva 2 mg/1, protrombine-mia 83,5%; tiempo de tromboplastina parcial activado: 28,1 s, recuento de leucocitos de 18.200/fxl, hemoglobinemia de 12,7 mg/dl y un hematocrito de 39%. Se realizó una tomografía computada (TC) de abdomen y pelvis, con contraste, que mostró una masa espontáneamente hiperdensa a nivel del hipocondrio y flanco derecho de 16 por 12 por 9 cm y que desplazaba el colon derecho hacia la periferia, manteniendo un plano de clivaje con él. Se sugería la presencia de un extenso hematoma mesentérico, sin poder descartar también neoplasia subyacente. Al segundo día de hospitalización el paciente estaba hemodinámicamente estable, afebril y con menos dolor abdominal espontáneo, sin embargo, el hematocrito de control descendió a 21%, decidiéndose entonces transfundir 2 U de glóbulos rojos e intervenir quirúrgicamente al paciente.\n Se efectuó laparotomía exploradora, encontrándose un gran hematoma encapsulado retrope-ritoneal derecho, que se extendía desde el mesocolon transverso hasta la pelvis, sin observar lesión con sangrado activo. Se realizó vaciamiento, aseo, instalación de drenajes en el retroperito-neo y toma de muestras para biopsia, la que, posteriormente, se informó como hematoma de mesenterio sin evidencias de neoplasia.\n El paciente evolucionó satisfactoriamente hasta el sexto día del posoperatorio, cuando se observó salida de líquido fecal por los drenajes, realizándose el diagnóstico de fístula estercorácea. Se decidió, entonces, conectar los tubulares a aspiración e iniciar tratamiento antibiótico con metronidazol más ciprofloxacina, con lo que se consiguió buen control de la fístula, la cual evolucionó al cierre definitivo al vigésimo día desde la operación, dándose de alta en óptimas condiciones generales y de la herida. El paciente se ha mantenido en control ambulatorio en policlínico de cirugía, permaneciendo asintomático a 6 meses de su egreso.\n \n", "section_annotation": { "gold": [ { "end_offset": 47, "label": "PRESENT_ILLNESS", "segment": "Paciente de sexo masculino de 78 años de edad, ", "start_offset": 0 }, { "end_offset": 99, "label": "PAST_MEDICAL_HISTORY", "segment": "con antecedente de alcoholismo desde hacía 10 años. 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El abdomen aparecía distendido, con dolor intenso a la palpación superficial y profunda en hipocondrio, flanco y fosa ilíaca derecha. Presentaba, además, dolor de rebote difuso, resistencia muscular difusa y puño percusión derecha positiva. En los exámenes de laboratorio de ingreso se obtuvo: glicemla de 250 mg/dl, nitrógeno ureico de 17 mg/dl, creatininemia de 1,17 mg/dl, amilasa 86 U/1, lipasa 40 U/1, proteína C reactiva 2 mg/1, protrombine-mia 83,5%; tiempo de tromboplastina parcial activado: 28,1 s, recuento de leucocitos de 18.200/fxl, hemoglobinemia de 12,7 mg/dl y un hematocrito de 39%. Se realizó una tomografía computada (TC) de abdomen y pelvis, con contraste, que mostró una masa espontáneamente hiperdensa a nivel del hipocondrio y flanco derecho de 16 por 12 por 9 cm y que desplazaba el colon derecho hacia la periferia, manteniendo un plano de clivaje con él. Se sugería la presencia de un extenso hematoma mesentérico, sin poder descartar también neoplasia subyacente. 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El estudio hormonal de la tía y de la madre del probando (sujetos II. 2 y II. 3) incluyó una prueba de ACTH, cuyos valores de 170H Progesterona basal y estimulado fueron normales, no permitiendo aclarar si estos sujetos eran heterocigotos de una mutación del CYP21A2.\n El estudio molecular se realizó en ADN genómi-co extraído de leucocitos y las siete mutaciones más frecuentes del gen CYP21A2 fueron estudiadas con PCR alelo específica (Fardella, 1998). Este estudio demostró en la familia paterna (sujetos II.2, II.4, II.6) la mutación Q318X en el exón 8, que consiste en el cambio de una glutamina por un codón de stop. Este resultado no permitió clasificar a la familia materna y por ende decidir sobre la necesidad del tratamiento prenatal en estas parejas.\n Posteriormente, el gen CYP21A2fue secuenciado en la Universidad de Sao Paulo según las técnicas clásicas (Wedell, 1993). Usando esta metodología, se encontró en uno de los alelos de la familia paterna (sujetos II.2, II.4, II.6) la mutación Q318X junto a la mutación R483W, la que consiste en la sustitución de una arginina por triptofano (CGG>TGG). En la familia materna (sujetos II. 1, II.3, II.5) se encontró un alelo con la mutación R483->frameshift, también conocida como R483delGGinsC, la cuál consiste en el cambio de los nucleótidos GG por C, alterando la lectura del codón. De este modo se certificó que los seis cónyuges poseen mutaciones para HSC perdedora de sal, y por lo tanto, se encuentran en riesgo de tener hijas con ambigüedad genital.\n Consejo genético y manejo de los embarazos. Se procede a dar consejo genético a los tres matrimonios afectados. La tía paterna (sujeto II.2), mujer sana de 34 años, suspende el método anticonceptivo por deseos de fertilidad y logra concepción espontánea en marzo 2005. Se explican los beneficios y riesgos del tratamiento prenatal con corti-coides, los que la paciente entiende y acepta, firmando un consentimiento en que opta por realizar esta terapia. El tratamiento comenzó a las 6 semanas de edad gestacional (EG) con dexametasona en dosis de 20 µg/kg/día.\n A las 13 semanas se realizó el diagnóstico de sexo fetal masculino por ultrasonografía de alta resolución (Voluson 730, General Electric, Austria, transductor transabdominal de 3,5-5 MHz), la cual es capaz de predecir conectamente el sexo fetal con 99% de certeza después de 12+6 semanas EG (Efrat, 2006); la familia no aceptó técnicas invasivas de diagnóstico prenatal. Se disminuyó progresivamente las dosis de esteroides, suspendiéndolo en forma completa a las 22 semanas. Durante el período de tratamiento la paciente presentó edema e hipertensión arterial que requirió tratamiento con ametildo-pa. Los síntomas revirtieron parcialmente con la suspensión de terapia corticoidal, y totalmente posparto. A las 39 semanas se realizó cesárea y se obtuvo recién nacido de sexo masculino, con peso adecuado y examen físico normal. Los niveles de 170HP a los 5 días se muestran en la Figura IB.\n La tía materna (sujeto II.5) de 37 años consultó por embarazo inicial de 5 semanas de EG. Se ofrece nuevamente tratamiento prenatal de HSC, y también se solicitó firma de consentimiento informado. La familia optó nuevamente por seguir este tratamiento. A las 6 semanas de EG se inició dexametasona en dosis de 20 Lig/kg/día. La madre no aceptó las técnicas invasivas de diagnóstico prenatal y se decidió realizar diagnóstico de sexo fetal mediante ecografía precoz. En caso de que se tratara de un feto femenino continuarían el tratamiento hasta el término del embarazo. A las 12 semanas se diagnosticó sexo fetal masculino y se programó suspensión de esteroides. La paciente no presentó efectos adversos a la dexametasona. A las 40 semanas nació niño sano, no afectado.\n", "section_annotation": { "gold": [ { "end_offset": 63, "label": "PRESENT_ILLNESS", "segment": "Familia afectada de la madre.\n \n Estudio molecular y hormonal. ", "start_offset": 0 }, { "end_offset": 332, "label": "FAMILY_HISTORY", "segment": "El estudio hormonal de la tía y de la madre del probando (sujetos II. 2 y II. 3) incluyó una prueba de ACTH, cuyos valores de 170H Progesterona basal y estimulado fueron normales, no permitiendo aclarar si estos sujetos eran heterocigotos de una mutación del CYP21A2.\n ", "start_offset": 63 }, { "end_offset": 519, "label": "EXPLORATION", "segment": "El estudio molecular se realizó en ADN genómi-co extraído de leucocitos y las siete mutaciones más frecuentes del gen CYP21A2 fueron estudiadas con PCR alelo específica (Fardella, 1998). 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En la familia materna (sujetos II. 1, II.3, II.5) se encontró un alelo con la mutación R483->frameshift, también conocida como R483delGGinsC, la cuál consiste en el cambio de los nucleótidos GG por C, alterando la lectura del codón. De este modo se certificó que los seis cónyuges poseen mutaciones para HSC perdedora de sal, y por lo tanto, se encuentran en riesgo de tener hijas con ambigüedad genital.\n ", "start_offset": 949 }, { "end_offset": 1695, "label": "TREATMENT", "segment": "Consejo genético y manejo de los embarazos. Se procede a dar consejo genético a los tres matrimonios afectados. ", "start_offset": 1583 }, { "end_offset": 1852, "label": "EVOLUTION", "segment": "La tía paterna (sujeto II.2), mujer sana de 34 años, suspende el método anticonceptivo por deseos de fertilidad y logra concepción espontánea en marzo 2005. 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Después de un mes de haber presentado varicela, inició dificultad para deglutir en forma progresiva, sin evidencia de síntomas de hipo o hipertiroidismo. Su velocidad de crecimiento pondoestatural durante el último año fue normal (5 cm/año) y su edad ósea fue de 12 años.\n Antecedentes previos. Recién nacido pretérmino de 33 semanas; durante el periodo neonatal cursó con distress respiratorio; requirió ventilación mecánica por cuatro días. Sin antecedentes mórbidos relevantes. Actualmente cursa sexto básico con buen rendimiento escolar.\n Historia familiar Hijo de padres sanos, con antecedente de tiroiditis de Hashimoto en el abuelo y tía materna. Su talla familiar es de l69±5 cm (percentil 13,7).\n Examen físico. Talla: 146,4 cm (percentil 54), índice de Masa Corporal: 18,2 kg/m2 (percentil 62,5); sin desarrollo puberal (vello púbico Tanner I, testículos de 3 ce, simétricos). En la faringe, se visualiza una masa rojiza de aproximadamente 2x2 cm en la base de la lengua, con vasos venosos en su superficie, sin evidencia de hemorragia o ulceración. Sin estridor u odinofagia. En el examen de cuello no se palpó tiroides en la posición pre traqueal.\n Laboratorio. Las pruebas de función tiroidea revelaron TSH elevada 10,79 UI/mL (rango normal =0,7-5,7 UI/mL), con tiroxina normal, pero en su cuartil más bajo, 6,0 Lig/dl (rango normal TT =5,5-11,7 Hg/dl) y triyodotironina baja 57,8 ng/dL (rango normal =84,4-214,3 ng/dL) y anticuerpos antiperoxidasa y antiroglobulina ausentes.\n Estudio de imágenes. La nasofibrolaringoscopia óptica evidenció una masa rojiza, tensa, redondeada, con vasos sanguíneos en la superficie. La tomografía computarizada (TC) de cuello confirmó una masa bien circunscrita en la base de la lengua, de 2,0 x 1,9 x 1,8 cm, hiperdensa en los cortes sin medio de contraste endovenoso, sin nodulos en su interior. El estudio con cinügrafía con Tc-99 mostró captación en la base de la lengua, sin evidencias de tiroides en su localización normal, concordante con una ectopia lingual de la glándula tiroides.\n Seguimiento. Después que el diagnóstico fue realizado, el paciente inició L-Tiroxina en dosis de 75 \\ig/día. Al mes de tratamiento la TSH estaba suprimida (0,11 UI/mL) con tiroxina libre normal alta 1,93 ng/dL (0,8-2,0). El examen físico reveló una disminución gradual en el tamaño de la tiroides lingual y desaparición de la disfagia.\n \n", "section_annotation": { "gold": [ { "end_offset": 321, "label": "PRESENT_ILLNESS", "segment": "Paciente de sexo masculino, de 11 años de edad. Después de un mes de haber presentado varicela, inició dificultad para deglutir en forma progresiva, sin evidencia de síntomas de hipo o hipertiroidismo. Su velocidad de crecimiento pondoestatural durante el último año fue normal (5 cm/año) y su edad ósea fue de 12 años.\n ", "start_offset": 0 }, { "end_offset": 591, "label": "PAST_MEDICAL_HISTORY", "segment": "Antecedentes previos. Recién nacido pretérmino de 33 semanas; durante el periodo neonatal cursó con distress respiratorio; requirió ventilación mecánica por cuatro días. Sin antecedentes mórbidos relevantes. Actualmente cursa sexto básico con buen rendimiento escolar.\n ", "start_offset": 321 }, { "end_offset": 754, "label": "FAMILY_HISTORY", "segment": "Historia familiar Hijo de padres sanos, con antecedente de tiroiditis de Hashimoto en el abuelo y tía materna. Su talla familiar es de l69±5 cm (percentil 13,7).\n ", "start_offset": 591 }, { "end_offset": 2087, "label": "EXPLORATION", "segment": "Examen físico. Talla: 146,4 cm (percentil 54), índice de Masa Corporal: 18,2 kg/m2 (percentil 62,5); sin desarrollo puberal (vello púbico Tanner I, testículos de 3 ce, simétricos). En la faringe, se visualiza una masa rojiza de aproximadamente 2x2 cm en la base de la lengua, con vasos venosos en su superficie, sin evidencia de hemorragia o ulceración. Sin estridor u odinofagia. En el examen de cuello no se palpó tiroides en la posición pre traqueal.\n Laboratorio. Las pruebas de función tiroidea revelaron TSH elevada 10,79 UI/mL (rango normal =0,7-5,7 UI/mL), con tiroxina normal, pero en su cuartil más bajo, 6,0 Lig/dl (rango normal TT =5,5-11,7 Hg/dl) y triyodotironina baja 57,8 ng/dL (rango normal =84,4-214,3 ng/dL) y anticuerpos antiperoxidasa y antiroglobulina ausentes.\n Estudio de imágenes. La nasofibrolaringoscopia óptica evidenció una masa rojiza, tensa, redondeada, con vasos sanguíneos en la superficie. La tomografía computarizada (TC) de cuello confirmó una masa bien circunscrita en la base de la lengua, de 2,0 x 1,9 x 1,8 cm, hiperdensa en los cortes sin medio de contraste endovenoso, sin nodulos en su interior. El estudio con cinügrafía con Tc-99 mostró captación en la base de la lengua, sin evidencias de tiroides en su localización normal, concordante con una ectopia lingual de la glándula tiroides.\n ", "start_offset": 754 }, { "end_offset": 2196, "label": "TREATMENT", "segment": "Seguimiento. Después que el diagnóstico fue realizado, el paciente inició L-Tiroxina en dosis de 75 \\ig/día. ", "start_offset": 2087 }, { "end_offset": 2308, "label": "EVOLUTION", "segment": "Al mes de tratamiento la TSH estaba suprimida (0,11 UI/mL) con tiroxina libre normal alta 1,93 ng/dL (0,8-2,0). ", "start_offset": 2196 }, { "end_offset": 2425, "label": "EXPLORATION", "segment": "El examen físico reveló una disminución gradual en el tamaño de la tiroides lingual y desaparición de la disfagia.\n \n", "start_offset": 2308 } ] } }
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insulina glargina e insulina lispro previo a las comidas). Entre sus antecedentes destacaban gran tabaquismo, dislipidemia mixta en tratamiento irregular con ciprofibrato 100 mg/día y microalbuminuria de 50 mg/12 h, sin hipertensión arterial en tratamiento con enalapril 5 mg/día.\n Consultó en un centro de salud por sensación febril no cuantificada, calofríos, odinofagia, náuseas y vómitos alimentarios de 2 días de evolución. Se constató deshidratación moderada, temperatura axilar de 37,8°C y glicemia capilar mayor de 400 mg/dl. Fue internado, recibiendo solución fisiológica e insulina cristalina en esquema de minidosis. Entre los exámenes de laboratorio obtenidos al ingreso destacaban glicemia 549 mg/dl, creatinina 1,67 mg/dl, pH 6,91, BE -27, HC03 4,6 (en sangre arterial), cetonemia +++, natremia 141,7 mEq/L, kalemia 5,92 mEq/L, cloremia 98 mEq/L, amilasemia 48 U/L, hematocrito 40,5%, leucocitos 9-100 mm3, VHS 38 mm/h y urocultivo negativo. Fue dado de alta con el diagnóstico de cetoacidosis diabética, se le indicó mantener el esquema insulínico intensificado y asistir a control ambulatorio. El paciente se trasladó a la ciudad de Temuco, consultando 10 días después del alta por sensación febril no cuantificada, sudoración nocturna, odinofagia y dolor al movilizar el cuello. Al examen físico destacaba un gran aumento de volumen de la región posterior del cuello, sensible, sin signos inflamatorios ni crepitación, fetor pútrido y faringe congestiva con escaso exudado purulento. Se indicó hospitalización con el diagnóstico de DM descompensada, faringo-amigdalitis pultácea y masa cervical en estudio. Entre los exámenes destacaban glicemia 270 mg/dl, creatinina 0,8 mg/ di, hematocrito 35,7%, leucocitos 18.800 por mm3, VHS 91 mm/hora, PCR 309 mg/L. Se inició hidratación con solución fisiológica e infusión endovenosa continua de insulina, fue evaluado por otorrinolaringólogo con nasofaringoscopia, pesquisándose flegmón faríngeo. Se inició terapia con penicilina sódica EV 20 millones U/día, cloxacilina 12 g EV/ día y ceftriaxona 2 g EV/día. El aumento de volumen cervical fue estudiado con ecotomografía cervical, que mostró una colección en el compartimiento posterior del cuello y tomografía axial computarizada multicorte de cuello en que se apreciaba aumento de volumen del espacio retrofa-ríngeo y de los compartimientos posteriores del cuello de aspecto flegmonoso.\n \n Evaluado en conjunto con otorrinolaringólogo y cirujano de cabeza y cuello, se decidió practicar drenaje quirúrgico de la colección. Al segundo día de hospitalización se realizaron 2 incisiones en la región posterior del cuello, drenando líquido purulento. No se encontró evidencias de necrosis o gas. Se obtuvo cultivo de la secreción, aislándose Streptococcus grupo B, los hemocultivos fueron negativos. Luego de una semana con antibióticos EV, los drenajes Penrose dejaron de entregar secreción y fueron retirados. La exploración de las incisiones fue satisfactoria. Se dio de alta con antibiótico oral hasta completar otra semana (Ampicilina/Sulbactam).\n", "section_annotation": { "gold": [ { "end_offset": 17, "label": "PRESENT_ILLNESS", "segment": "Varón de 47 años ", "start_offset": 0 }, { "end_offset": 411, "label": "PAST_MEDICAL_HISTORY", "segment": "con DM diagnosticada hace 9 años, en tratamiento actual con esquema insulínico intensivo (una dosis nocturna de insulina glargina e insulina lispro previo a las comidas). Entre sus antecedentes destacaban gran tabaquismo, dislipidemia mixta en tratamiento irregular con ciprofibrato 100 mg/día y microalbuminuria de 50 mg/12 h, sin hipertensión arterial en tratamiento con enalapril 5 mg/día.\n ", "start_offset": 17 }, { "end_offset": 558, "label": "PRESENT_ILLNESS", "segment": "Consultó en un centro de salud por sensación febril no cuantificada, calofríos, odinofagia, náuseas y vómitos alimentarios de 2 días de evolución. 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Consultó por cuadro de dolor intenso en flanco derecho, de inicio súbito, sin irradiación, asociado a náuseas y vómito en una ocasión que cede espontáneamente. El cuadro se repitió 5 h después, siendo de similares características al anterior.\n No presentó fiebre y al examen físico destacaba una presión arterial de 140/82 mmHg y dolor a la palpación en fosa ilíaca derecha (FID).\n Dentro de los exámenes de laboratorio se encontró orina completa sin hematuria, hemogra-ma con leucocitosis (17.200 x mm3), creatininemia de 1,2 mg/dl y LDH de 1.457 UI/1.\n Se realizó pieloTC que resultó ser negativa para urolitiasis, prosiguiéndose con TC de abdomen y pelvis, en la cual se observó una extensa área hipodensa de aspecto cuneiforme en la cara posterior del parénquima renal derecho, compatible con infarto parcial renal derecho.\n Se hospitalizó al paciente. Se tomaron exámenes para trombofilia, cuyos resultados fueron normales, previo al inicio de anticoagulación (Fragmin y Neosintrón ). Además se realizó ecocardiografía transesofágica que resultó normal y un angioTC que reveló la presencia de una arteria renal derecha dominante (AD) y otra polar de menor calibre con trayecto normal, e imagen compatible con alteración de la pared arterial con infarto renal.\n \n Se prosiguió con estudio angiográfico, el cual reveló una aortografía normal, alteración en la perfusión del polo superior, cara anterior y posterior del riñon derecho, sin compromiso de la perfusión del polo inferior dado por la arteria polar secundaria. La arteria renal dominante se observó irregular, dilatada a partir de su tercio medio que además presentó un flap de disección que comprometió el origen de las ramas interlobares, limitando así el flujo distal. El flap de disección fue descrito como de alta complejidad sin posibilidades de maniobras endovasculares.\n \n Dos días después presentó nuevo episodio de dolor en flanco derecho. Nuevo angioTC mostró una clara progresión del infarto renal en los 2/3 superiores del riñon derecho.\n \n El paciente evolucionó con presiones arteriales en el rango de 160/100 mmHg y sin deterioro de la función renal (creatininemia 1,2 mg/dl). Fue dado de alta con terapia antihipertensiva (Blox 4 mg/día) en buenas condiciones generales para su manejo ambulatorio. En control ambulatorio a los dos y diecisiete días posterior al alta se encontró al paciente asintomático, normotenso y con el resto del examen físico sin hallazgos patológicos.\n", "section_annotation": { "gold": [ { "end_offset": 18, "label": "PRESENT_ILLNESS", "segment": "Hombre de 33 años ", "start_offset": 0 }, { "end_offset": 107, "label": "PAST_MEDICAL_HISTORY", "segment": "con antecedentes de ser fumador (20 cig/día) y un episodio de urolitiasis a los 27 años. 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El cuadro se repitió 5 h después, siendo de similares características al anterior.\n ", "start_offset": 107 }, { "end_offset": 936, "label": "EXPLORATION", "segment": "No presentó fiebre y al examen físico destacaba una presión arterial de 140/82 mmHg y dolor a la palpación en fosa ilíaca derecha (FID).\n Dentro de los exámenes de laboratorio se encontró orina completa sin hematuria, hemogra-ma con leucocitosis (17.200 x mm3), creatininemia de 1,2 mg/dl y LDH de 1.457 UI/1.\n Se realizó pieloTC que resultó ser negativa para urolitiasis, prosiguiéndose con TC de abdomen y pelvis, en la cual se observó una extensa área hipodensa de aspecto cuneiforme en la cara posterior del parénquima renal derecho, compatible con infarto parcial renal derecho.\n ", "start_offset": 351 }, { "end_offset": 964, "label": "EVOLUTION", "segment": "Se hospitalizó al paciente. ", "start_offset": 936 }, { "end_offset": 1951, "label": "EXPLORATION", "segment": "Se tomaron exámenes para trombofilia, cuyos resultados fueron normales, previo al inicio de anticoagulación (Fragmin y Neosintrón ). Además se realizó ecocardiografía transesofágica que resultó normal y un angioTC que reveló la presencia de una arteria renal derecha dominante (AD) y otra polar de menor calibre con trayecto normal, e imagen compatible con alteración de la pared arterial con infarto renal.\n \n Se prosiguió con estudio angiográfico, el cual reveló una aortografía normal, alteración en la perfusión del polo superior, cara anterior y posterior del riñon derecho, sin compromiso de la perfusión del polo inferior dado por la arteria polar secundaria. La arteria renal dominante se observó irregular, dilatada a partir de su tercio medio que además presentó un flap de disección que comprometió el origen de las ramas interlobares, limitando así el flujo distal. El flap de disección fue descrito como de alta complejidad sin posibilidades de maniobras endovasculares.\n \n ", "start_offset": 964 }, { "end_offset": 2020, "label": "EVOLUTION", "segment": "Dos días después presentó nuevo episodio de dolor en flanco derecho. ", "start_offset": 1951 }, { "end_offset": 2124, "label": "EXPLORATION", "segment": "Nuevo angioTC mostró una clara progresión del infarto renal en los 2/3 superiores del riñon derecho.\n \n ", "start_offset": 2020 }, { "end_offset": 2263, "label": "EVOLUTION", "segment": "El paciente evolucionó con presiones arteriales en el rango de 160/100 mmHg y sin deterioro de la función renal (creatininemia 1,2 mg/dl). ", "start_offset": 2124 }, { "end_offset": 2385, "label": "TREATMENT", "segment": "Fue dado de alta con terapia antihipertensiva (Blox 4 mg/día) en buenas condiciones generales para su manejo ambulatorio. 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Se le practicó una gastrectomía subtotal con reconstrucción tipo Billroth II. La evolución postoperatoria fue normal. En la pieza de gastrectomía subtotal se encontró un tumor ulcerado en la cara anterior, distante 15 mm de la sección gástrica y 3 cm del píloro. El tumor medía 3,5 cm en el eje longitudinal y 7 cm en el transversal, comprometiendo la curvatura menor y extendiéndose 2,5 cm a la cara posterior. Al corte, estaba constituido por tejido rosado pálido lobulado, liso y brillante, que reemplazaba las túnicas submucosa, muscular propia y subserosa, abombando levemente la serosa. El examen histopatológico demostró un linfoma no Hodgkin mixto linfo-histiocítico de la clasificación de Rappaport de 1966, vigente hasta que se formularon las clasificaciones de Kiel (1974) y de Lukes y Collins (1974). No se encontró compromiso de los ganglios linfáticos por linfoma. El enfermo recibió radioterapia adyuvante y fue seguido con endoscopias anuales por 23 años. No se observaron nuevas lesiones gástricas ni se demostró la presencia de Helicobacter pylori. Durante este período, el paciente desarrolló hipertensión arterial, tumores de Warthin de ambas glándulas parótidas, de los cuales sólo se resecó el derecho y un cáncer de piel de tipo epidermoide en la extremidad inferior derecha.\n \n En septiembre de 2006, 32 años después de la operación gástrica, consultó por síntomas de anemia. En el examen físico se observó palidez, sin masas abdominales. El hematocrito fue de 34,5% y una endoscopia digestiva alta mostró una lesión proliferativa y ulcerada en el muñón gástrico que obstruía parcialmente la anastomosis gastroyeyunal. El estudio anatomopatológico mostró que la mucosa gástrica se encontraba infiltrada por un adenocarcinoma tubular moderadamente diferenciado. No se comprobó la presencia de Helicobacter pylori. La tomografía computada de tórax, abdomen y pelvis fueron normales.\n \n El paciente fue operado y se le realizó una gastrectomía total con disección ganglionar. La recuperación postoperatoria fue normal. El estudio anatomopatológico de la pieza quirúrgica mostró una lesión tumoral ulcerada en el muñón gástrico con infiltración de la anastomosis gastroyeyunal. El estudio microscópico demostró un adenocarcinoma tubular moderadamente diferenciado con compromiso de la subserosa de la pared gástrica, metástasis en 10 linfonodos de 16 resecados y permeaciones vasculares linfáticas (T2bN2M0, Etapa IIIB).\n \n", "section_annotation": { "gold": [ { "end_offset": 39, "label": "PRESENT_ILLNESS", "segment": "Paciente de sexo masculino de 76 años, ", "start_offset": 0 }, { "end_offset": 1423, "label": "PAST_MEDICAL_HISTORY", "segment": "quien fue operado de urgencia en 1974 por una lesión ulcerada gástrica sangrante. Se le practicó una gastrectomía subtotal con reconstrucción tipo Billroth II. La evolución postoperatoria fue normal. En la pieza de gastrectomía subtotal se encontró un tumor ulcerado en la cara anterior, distante 15 mm de la sección gástrica y 3 cm del píloro. El tumor medía 3,5 cm en el eje longitudinal y 7 cm en el transversal, comprometiendo la curvatura menor y extendiéndose 2,5 cm a la cara posterior. Al corte, estaba constituido por tejido rosado pálido lobulado, liso y brillante, que reemplazaba las túnicas submucosa, muscular propia y subserosa, abombando levemente la serosa. El examen histopatológico demostró un linfoma no Hodgkin mixto linfo-histiocítico de la clasificación de Rappaport de 1966, vigente hasta que se formularon las clasificaciones de Kiel (1974) y de Lukes y Collins (1974). No se encontró compromiso de los ganglios linfáticos por linfoma. El enfermo recibió radioterapia adyuvante y fue seguido con endoscopias anuales por 23 años. No se observaron nuevas lesiones gástricas ni se demostró la presencia de Helicobacter pylori. Durante este período, el paciente desarrolló hipertensión arterial, tumores de Warthin de ambas glándulas parótidas, de los cuales sólo se resecó el derecho y un cáncer de piel de tipo epidermoide en la extremidad inferior derecha.\n \n ", "start_offset": 39 }, { "end_offset": 1521, "label": "PRESENT_ILLNESS", "segment": "En septiembre de 2006, 32 años después de la operación gástrica, consultó por síntomas de anemia. ", "start_offset": 1423 }, { "end_offset": 2029, "label": "EXPLORATION", "segment": "En el examen físico se observó palidez, sin masas abdominales. El hematocrito fue de 34,5% y una endoscopia digestiva alta mostró una lesión proliferativa y ulcerada en el muñón gástrico que obstruía parcialmente la anastomosis gastroyeyunal. El estudio anatomopatológico mostró que la mucosa gástrica se encontraba infiltrada por un adenocarcinoma tubular moderadamente diferenciado. No se comprobó la presencia de Helicobacter pylori. La tomografía computada de tórax, abdomen y pelvis fueron normales.\n \n ", "start_offset": 1521 }, { "end_offset": 2118, "label": "TREATMENT", "segment": "El paciente fue operado y se le realizó una gastrectomía total con disección ganglionar. ", "start_offset": 2029 }, { "end_offset": 2161, "label": "EVOLUTION", "segment": "La recuperación postoperatoria fue normal. ", "start_offset": 2118 }, { "end_offset": 2564, "label": "EXPLORATION", "segment": "El estudio anatomopatológico de la pieza quirúrgica mostró una lesión tumoral ulcerada en el muñón gástrico con infiltración de la anastomosis gastroyeyunal. El estudio microscópico demostró un adenocarcinoma tubular moderadamente diferenciado con compromiso de la subserosa de la pared gástrica, metástasis en 10 linfonodos de 16 resecados y permeaciones vasculares linfáticas (T2bN2M0, Etapa IIIB).\n \n", "start_offset": 2161 } ] } }
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Presentó las primeras manifestaciones de EICH agudo, con compromiso predominante cutáneo el día +42, manifestado como lesión máculo-pápulo eritematosa de tronco y extremidades con biopsia compatible con EICH agudo, momento en que se administró asociación de corticoides (prednisona 20 mg/dia) con ciclosporina, reemplazándose luego la ciclosporina por tacrolimus, 3 mg/dia vía oral, debido a toxicidad neurológica de la primera. Las lesiones de la mucosa oral aparecieron en forma más tardía y su primera descripción aparece en la evolución del día +310.\n En el momento del examen clínico, las lesiones bucales comprometían casi la totalidad de la mucosa, pero se manifestaban mayormente en cara interna de labios, cara interna de mejilla y cara ventral de lengua. Las lesiones eran de color blanquecino, con aspecto reticular y no se desprendían al raspado. La paciente no refería síntomas asociados.\n \n Con la hipótesis diagnóstica de compromiso de mucosa oral por enfermedad de injerto contra huésped se procedió a realizar biopsia incisional de mucosa de cara interna de labio inferior, lugar en el cual las lesiones eran manifiestas.\n El informe histopatológico fue compatible con EIVH. Se describió un epitelio de revestimiento plano pluriestratificado hiperparaqueratinizado y con hiperplasia agujiforme. Un estrato basal con desorganización celular y en el corion inmediatamente subyacente infiltración linfocitaria junto con vasos de neoformación y proliferación fibroblástica. También se describió leve infiltrado linfocitario periductal en glándula salival menor vecina.\n \n Se indicaron medidas locales para disminuir el riesgo de infecciones y mantener adecuada humectación del medio bucal; clorhexidina al 0,12% dos veces al día, sustituto de saliva de uso diario, además de instrucción de higiene oral.\n Seis meses después la paciente fue controlada manifestando dolor en algunas zonas de la mucosa bucal, evidenciándose lesiones erosivas en el examen clínico. Se decidió incorporar en el esquema de tratamiento local, el uso de betametasona al 0,1% en plastibase, reforzando las medidas de higiene bucal. Sin embargo, las lesiones permanecieron y el dolor aumentó, por lo cual se cambió por tacrolimus 0,1% en aplicación tópica 3 veces al día, agregándose además miconazol 2% (Daktarin Gel) de aplicación tópica, 3 veces al día. Además se sustituyó la clorhexidina al 0,12% por una concentración más baja, 0,05%, dado que la paciente le costaba tolerar la primera por provocarle ardor al momento de usarla. 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La biopsia por laparotomía de la masa periaórtica mostró LNH folicular de bajo grado con lo cual se arribó al diagnóstico de LP.\n La quimioterapia con CHOP-R fue efectiva, con resolución inicial completa de la masa objetivado por TAC, pero desarrolló luego quilotórax, malnutrición y falleció.\n", "section_annotation": { "gold": [ { "end_offset": 18, "label": "PRESENT_ILLNESS", "segment": "Mujer de 70 años, ", "start_offset": 0 }, { "end_offset": 218, "label": "PAST_MEDICAL_HISTORY", "segment": "con antecedentes de hipertensión arterial y tabaquista de 20 paquetes/año, en quien un LNH sistémico se presentó con características clínicas de un SAA, en su variante disección de aorta descendente. ", "start_offset": 18 }, { "end_offset": 309, "label": "PRESENT_ILLNESS", "segment": "Se presentó al servicio de emergencias luego del inicio de un dolor dorsal agudo y disnea. 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Consultó en servicio de urgencia en septiembre de 2007 por dolor abdominal en hipocondrio derecho, afebril, sin vómitos ni alteraciones del tránsito intestinal. El examen físico no fue concluyente por lo que se solicitaron exámenes de laboratorio e imágenes. En los análisis destacaba una proteína C reactiva de 7,2 mg/dL, leucocitos 8.080/mm3 con 67,8% de neutrófilos y amilasemia normal. Una ecotomografía demostró una lesión sólido-quística compleja de alrededor de 5 cm en el lóbulo izquierdo del hígado. La tomografía computada de abdomen reveló una probable colecistitis aguda y una lesión focal hepática sospechosa de absceso. Se efectuó colecistectomía y biopsia de la lesión hepática. No se identifican otras lesiones abdominales durante la exploración quirúrgica. El estudio anatomopatológico demuestra una metástasis hepática de tumor neuroendocrino con inmunohistoquímica concordante.\n Se solicitó un PET/CT con 18FDG de cuerpo entero el que mostró sólo captación fisiológica en diversos órganos sin observarse un incremento significativo del metabolismo glucídico de la metástasis del lóbulo izquierdo del hígado en comparación con el resto del parénquima hepático. Una colonoscopia en búsqueda del tumor de origen fue catalogada como normal.\n Tres meses más tarde se realizó un examen PET/CT utilizando el nuevo radiofármaco 68Ga-DOTATATE (CGM Nuclear, Santiago-Chile) recientemente incorporado a nuestro centro. El control de calidad del producto reveló una pureza radioquímica superior al 99%. Se inyectaron por vía e.v. 111 MBq (3 mCi) del radiotrazador. Cincuenta minutos más tarde se registraron imágenes PET/ CT 3D de cuerpo entero en un aparato Biograph 6 HiRez P3D (Siemens Medical Systems, USA). El examen mostró, además de la intensa captación del radiofármaco en la metástasis del lóbulo hepático izquierdo y un segundo foco de sobreexpresión de receptores de SST situado en un asa de íleon distal en la región de la válvula ileocecal altamente sugerente de corresponder al tumor primario. No se encontraron otros focos patológicos.\n \n El paciente fue sometido a una nueva cirugía mediante laparotomía subcostal identificándose un nodulo de 16 mm en el íleon terminal, vecino a la válvula ileocecal, sin extensión regional macroscópica. Se efectúa resección del íleon terminal, ciego y apéndice cecal mediante laparotomía subcostal ampliada. En el mismo acto se extirpa la metástasis hepática mediante hepatectomía izquierda. Como hallazgos intraoperatorio se identifica una segunda metástasis de 8 mm del segmento VII del hígado la que se reseca en cuña. La anatomía patológica confirmó un carcinoma neuroendocrino de bajo grado del íleon terminal de 16 mm que infiltraba el espesor de la pared y con penetración linfovascular, 6 linfonodos regionales sin tumor y 2 metástasis hepáticas de carcinoma neuroendocrino de también de bajo grado, la ya conocida de 4,1 cm y otra de 0,8 cm.\n", "section_annotation": { "gold": [ { "end_offset": 38, "label": "PRESENT_ILLNESS", "segment": "Paciente de sexo masculino de 74 años ", "start_offset": 0 }, { "end_offset": 63, "label": "PAST_MEDICAL_HISTORY", "segment": "sin antecedentes médicos ", "start_offset": 38 }, { "end_offset": 92, "label": "FAMILY_HISTORY", "segment": "o familiares de importancia. ", "start_offset": 63 }, { "end_offset": 253, "label": "PRESENT_ILLNESS", "segment": "Consultó en servicio de urgencia en septiembre de 2007 por dolor abdominal en hipocondrio derecho, afebril, sin vómitos ni alteraciones del tránsito intestinal. 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Cincuenta minutos más tarde se registraron imágenes PET/ CT 3D de cuerpo entero en un aparato Biograph 6 HiRez P3D (Siemens Medical Systems, USA). El examen mostró, además de la intensa captación del radiofármaco en la metástasis del lóbulo hepático izquierdo y un segundo foco de sobreexpresión de receptores de SST situado en un asa de íleon distal en la región de la válvula ileocecal altamente sugerente de corresponder al tumor primario. No se encontraron otros focos patológicos.\n \n ", "start_offset": 866 }, { "end_offset": 2673, "label": "TREATMENT", "segment": "El paciente fue sometido a una nueva cirugía mediante laparotomía subcostal identificándose un nodulo de 16 mm en el íleon terminal, vecino a la válvula ileocecal, sin extensión regional macroscópica. Se efectúa resección del íleon terminal, ciego y apéndice cecal mediante laparotomía subcostal ampliada. En el mismo acto se extirpa la metástasis hepática mediante hepatectomía izquierda. 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que posteriormente se asoció con aumento de volumen cervical de rápido crecimiento y ortopnea.\n La radiografía de tórax fue informada como normal. La ecografía cervical mostró bocio con nodulo sólido izquierdo de gran tamaño (4,3 x 5,7 x 4,5 cm), hipoecogénico, escasamente vascularizado y con adenopatías cervicales bilaterales de aspecto reactivo. En el laboratorio destacó TSH elevada y T4 disminuida. Se sospechó cáncer de tiroides, inició levotiroxina y se programó resección quirúrgica.\n En la cirugía, se seccionaron los músculos pretiroideos izquierdos para facilitar la exploración, los que estaban adheridos a la lesión. El gran nodulo blanquecino se proyectaba hacia esófago cervical. Se realizó tiroidectomía total. La biopsia rápida de la pieza quirúrgica informó proliferación linfoide atípica sugerente de linfoma.\n Evolucionó con hipocalcemia sintomática de 7,6 mg/dl que cedió con calcio oral. Fue dada de alta al tercer día postoperatorio.\n La biopsia definitiva concluyó \"infiltrado linfoide de células grandes, con metaplasia de células de Hürtle, que comprometió la cápsula tiroidea y focalmente el tejido muscular peritiroideo. Inmunohistoquímica: CD20 (+) difuso, CD3 (+) focal en linfocitos pequeños, CD10 (+) difuso, BCL2 (-)\". Compatible con LNH tiroideo de células grandes estirpe B, tiroiditis de Hashimoto y metaplasia con células de Hürtle.\n Se indicó quimioterapia pero la paciente la rechazó por motivos religiosos.\n Seis meses después, consultó en cirugía por recidiva local con sintomatología obstructiva de vía aérea. 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La paciente se presentó en la Unidad de Emergencia del Hospital de La Serena con un cuadro clínico de 7 días de evolución con intenso dolor abdominal, inicialmente epigástrico y posteriormente difuso. Ingresó en shock séptico y mala condición general. Después de estabilización hemodi-námica se decidió su intervención quirúrgica con el diagnóstico de abdomen agudo de origen no precisado y peritonitis secundaria. No se realizó ningún estudio radiológico debido a que nuestro hospital no cuenta con radiólogo de turno y tampoco ecografía o tomografía de urgencia. El abordaje del abdomen se realizó a través de una laparotomía mediana. Se aspiraron 3 litros de exudado purulento y en la exploración se evidenció un tumor quístico de 15 cm de diámetro que se originaba en la A- porción del duodeno, perforado, adherido al colon sigmoides y cubierto de epiplón mayor. El tumor fue resecado en bloque con el epiplón y la A- porción del duodeno. El tránsito intestinal se reconstituyó mediante anastomosis término-terminal entre la 3a porción del duodeno y el yeyuno. La evolución postoperatoria fue tórpida, con complicaciones: infección del sitio quirúrgico superficial, íleo intestinal prolongado y neumonía nosocomial. Después de 37 días de hospitalización fue dada de alta en buenas condiciones. El estudio histológico demostró un tumor sólido-quísti-co, parcialmente necrótico y con bajo índice mitótico (1 a 2 mitosis por 50 campos de aumento mayor). Se observaron células epiteloides y fusiformes, positivas para CD117, CD34 y desmina. La reacción inmunohistoquímica fue negativa para S100, vimentina y acüna-a de músculo liso. El tamaño del tumor y el cuadro clínico de presentación (necrosis y perforación), constituyen indicaciones para terapia con imatinib por lo que fue derivada al Comité Oncológico Regional para iniciar tratamiento pertinente. La paciente se encuentra asintomática y en seguimiento hace 11 meses.Figura 2\n", "section_annotation": { "gold": [ { "end_offset": 17, "label": "PRESENT_ILLNESS", "segment": "Mujer de 38 años ", "start_offset": 0 }, { "end_offset": 165, "label": "PAST_MEDICAL_HISTORY", "segment": "con historia de NF1 que se manifestó en la infancia con abundantes efélides en todo el cuerpo, región axilar e inguinal y neurofibro-mas discretos. ", "start_offset": 17 }, { "end_offset": 366, "label": "PRESENT_ILLNESS", "segment": "La paciente se presentó en la Unidad de Emergencia del Hospital de La Serena con un cuadro clínico de 7 días de evolución con intenso dolor abdominal, inicialmente epigástrico y posteriormente difuso. ", "start_offset": 165 }, { "end_offset": 417, "label": "EXPLORATION", "segment": "Ingresó en shock séptico y mala condición general. ", "start_offset": 366 }, { "end_offset": 580, "label": "TREATMENT", "segment": "Después de estabilización hemodi-námica se decidió su intervención quirúrgica con el diagnóstico de abdomen agudo de origen no precisado y peritonitis secundaria. ", "start_offset": 417 }, { "end_offset": 730, "label": "EXPLORATION", "segment": "No se realizó ningún estudio radiológico debido a que nuestro hospital no cuenta con radiólogo de turno y tampoco ecografía o tomografía de urgencia. ", "start_offset": 580 }, { "end_offset": 1230, "label": "TREATMENT", "segment": "El abordaje del abdomen se realizó a través de una laparotomía mediana. Se aspiraron 3 litros de exudado purulento y en la exploración se evidenció un tumor quístico de 15 cm de diámetro que se originaba en la A- porción del duodeno, perforado, adherido al colon sigmoides y cubierto de epiplón mayor. El tumor fue resecado en bloque con el epiplón y la A- porción del duodeno. El tránsito intestinal se reconstituyó mediante anastomosis término-terminal entre la 3a porción del duodeno y el yeyuno. ", "start_offset": 730 }, { "end_offset": 1463, "label": "EVOLUTION", "segment": "La evolución postoperatoria fue tórpida, con complicaciones: infección del sitio quirúrgico superficial, íleo intestinal prolongado y neumonía nosocomial. Después de 37 días de hospitalización fue dada de alta en buenas condiciones. ", "start_offset": 1230 }, { "end_offset": 2022, "label": "EXPLORATION", "segment": "El estudio histológico demostró un tumor sólido-quísti-co, parcialmente necrótico y con bajo índice mitótico (1 a 2 mitosis por 50 campos de aumento mayor). Se observaron células epiteloides y fusiformes, positivas para CD117, CD34 y desmina. La reacción inmunohistoquímica fue negativa para S100, vimentina y acüna-a de músculo liso. El tamaño del tumor y el cuadro clínico de presentación (necrosis y perforación), constituyen indicaciones para terapia con imatinib por lo que fue derivada al Comité Oncológico Regional para iniciar tratamiento pertinente. ", "start_offset": 1463 }, { "end_offset": 2100, "label": "EVOLUTION", "segment": "La paciente se encuentra asintomática y en seguimiento hace 11 meses.Figura 2\n", "start_offset": 2022 } ] } }
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Consultó por dolor abdominal de 7 días de evolución asociado a distensión abdominal, náuseas y vómitos. La presión arterial fue 131/76, frecuencia cardiaca de 126 x' y 38,9eC de temperatura rectal. El abdomen estaba distendido, mate a la palpación y ausencia de ruidos intestinales a la auscultación. La evaluación ginecológica fue normal y la ecografía reveló líquido libre intraperitoneal y una estructura quística adyacente al intestino delgado. La tomografía computarizada abdominal (TAC), demostró algunas asas de intestino delgado rodeando una estructura tubular quística y líquido libre peritoneal. Los exámenes de laboratorio revelaron leucocitosis de 25.700 x mm3 y proteína C reactiva de 356,06 mg/dl. Con el diagnóstico de tumor quístico intestinal complicado la paciente fue operada. La cavidad abdominal se encontró llena de líquido seroso del cual se tomaron muestras para citología y cultivo. La exploración reveló múltiples implantes tumorales en el peritoneo parietal y visceral, e infiltración extensa del epiplón mayor, se tomaron muestras de estos implantes para biopsia. En el mesenterio del íleon se encontró un tumor quístico tubular blanquecino rodeado de asas intestinales, que medía 12 cm de diámetro por 15 cm de longitud. Se abrió el tumor aspirándose un líquido oscuro y espeso que fue enviado a citología. Se resecó la mayor cantidad posible de pared tumoral quedando una parte adherida al mesenterio, la resección completa del tumor no fue posible por la diseminación peritoneal y su localización en el mesenterio del íleon. La recuperación postoperatoria fue satisfactoria y sin complicaciones. Sin embargo, treinta y cuatro días después la paciente falleció. La muestras citológicas tomadas del líquido peritoneal y del contenido tumoral fueron positivas para células neoplásicas. La histopatología del tumor demostró la presencia de arquitectura típica de pared intestinal, en la cual se reconocían capas de músculo liso circular y longitudinal bien organizadas, identificándose plexos nerviosos mientéricos entre ambas capas musculares. La superficie interna estaba revestida por un adeno carcinoma mucosecretor moderadamente diferenciado que infiltraba todo el espesor de la pared en varias partes y que se extendió superficialmente por la serosa. Los hallazgos intraoperatorios y el informe histopatológico confirmaron el diagnóstico de adenocarcinoma en una duplicación intestinal de una paciente adulta.\n \n", "section_annotation": { "gold": [ { "end_offset": 18, "label": "PRESENT_ILLNESS", "segment": "Mujer de 36 años, ", "start_offset": 0 }, { "end_offset": 63, "label": "PAST_MEDICAL_HISTORY", "segment": "sin antecedentes patológicos de importancia, ", "start_offset": 18 }, { "end_offset": 221, "label": "PRESENT_ILLNESS", "segment": "hospitalizada por peritonitis de origen no precisado. Consultó por dolor abdominal de 7 días de evolución asociado a distensión abdominal, náuseas y vómitos. ", "start_offset": 63 }, { "end_offset": 829, "label": "EXPLORATION", "segment": "La presión arterial fue 131/76, frecuencia cardiaca de 126 x' y 38,9eC de temperatura rectal. El abdomen estaba distendido, mate a la palpación y ausencia de ruidos intestinales a la auscultación. 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La histopatología del tumor demostró la presencia de arquitectura típica de pared intestinal, en la cual se reconocían capas de músculo liso circular y longitudinal bien organizadas, identificándose plexos nerviosos mientéricos entre ambas capas musculares. La superficie interna estaba revestida por un adeno carcinoma mucosecretor moderadamente diferenciado que infiltraba todo el espesor de la pared en varias partes y que se extendió superficialmente por la serosa. Los hallazgos intraoperatorios y el informe histopatológico confirmaron el diagnóstico de adenocarcinoma en una duplicación intestinal de una paciente adulta.\n \n", "start_offset": 1809 } ] } }
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El cuadro actual se caracterizó por una descompensación respiratoria diagnosticada como una bronquiolitis obliterante siendo hospitalizado para su tratamiento. Al tercer día de hospitalización refirió un dolor abdominal tipo cólico de intensidad progresiva, localizado mayormente en hemiabdomen inferior derecho, asociado a 3 episodios de vómitos alimentarios. En el examen físico el abdomen se palpaba distendido y sensible en hemiabdomen derecho con bazuqueo. Se decidió tomar una radiografía simple de abdomen que mostró una moderada dilatación de asas de intestino delgado en hemiabdomen superior además de la presencia de abundante aire y contenido estercoráceo en todo el marco cólico. Se solicitó además una tomografía computada de abdomen que mostró una importante dilatación de intestino delgado en la porción más alta del yeyuno hasta la parte proximal del íleon que parecían ocupados y distendidos por material de aspecto fecaloideo, concluyendo con el diagnóstico de SOID. Se inició tratamiento con una dosis de Gastrografin® (100 mi diluidos en 400 mi. de suero fisiológico) presentando al cabo de 2 horas, gran cantidad de deposiciones líquidas e importante disminución de los síntomas. La radiografía simple de abdomen de control mostró distensión de algunas asas de intestino delgado en menor grado que en el examen anterior además de la presencia de medio de contraste en el intestino distal y marco colónico. El paciente fue dado de alta con suplemento de enzimas pancreáticas, encontrándose en buenas condiciones tras 10 meses de su hospitalización sin presentar nuevos cuadros de dolor abdominal, distensión o constipación.\n \n", "section_annotation": { "gold": [ { "end_offset": 20, "label": "PRESENT_ILLNESS", "segment": "Paciente de 31 años ", "start_offset": 0 }, { "end_offset": 231, "label": "PAST_MEDICAL_HISTORY", "segment": "con antecedentes de FQ diagnosticada a los 2 años de edad con tratamiento y controles regulares hasta mayo de 2000, año en que se le realizó un trasplante pulmonar bilateral, con muy buena evolución hasta 2009. ", "start_offset": 20 }, { "end_offset": 391, "label": "PRESENT_ILLNESS", "segment": "El cuadro actual se caracterizó por una descompensación respiratoria diagnosticada como una bronquiolitis obliterante siendo hospitalizado para su tratamiento. 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", "start_offset": 592 }, { "end_offset": 1432, "label": "TREATMENT", "segment": "Se inició tratamiento con una dosis de Gastrografin® (100 mi diluidos en 400 mi. de suero fisiológico) presentando al cabo de 2 horas, gran cantidad de deposiciones líquidas e importante disminución de los síntomas. ", "start_offset": 1216 }, { "end_offset": 1658, "label": "EXPLORATION", "segment": "La radiografía simple de abdomen de control mostró distensión de algunas asas de intestino delgado en menor grado que en el examen anterior además de la presencia de medio de contraste en el intestino distal y marco colónico. ", "start_offset": 1432 }, { "end_offset": 1877, "label": "EVOLUTION", "segment": "El paciente fue dado de alta con suplemento de enzimas pancreáticas, encontrándose en buenas condiciones tras 10 meses de su hospitalización sin presentar nuevos cuadros de dolor abdominal, distensión o constipación.\n \n", "start_offset": 1658 } ] } }
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"start_offset": 1657 } ] }, "note_id": "S0034-98872010000200011-1", "note_text": "Paciente indio de 44 años, hipertenso sin tratamiento por 10 años, fumador ocasional, quien se levantó en la mañana previa al ingreso con debilidad en el hemicuerpo derecho, así como pérdida de sensibilidad en la hemicara derecha, cuadro que progresó en las siguientes 24 horas en forma de imposibilidad para la marcha, por lo que hubo de ingresar una vez que fue llevado al departamento de emergencias, donde se le constató una presión arterial de 165/105 mmHg, pulso de 92 latidos x' y 16 de frecuencia respiratoria x'. El examen neurológico mostró una hipoestesia en la rama maxilar del trigémino derecho como único trastorno objetivo de la sensibilidad. La fuerza muscular y el tono estaba conservados a todos los niveles, pero se encontró una hiperreflexia osteotendinosa en el hemicuerpo derecho con Babinski ipsilateral. Elementos de disfunción cerebelosa se evidenciaron al existir disdiadococinesia, dismetría y discronometría al movilizar las extremidades derechas. La marcha era imposible por la tendencia a caer hacia la derecha al tratar de hacerla sin apoyo. La analítica sanguínea mostró hemoglobina, conteo diferencial de leucocitos y electrolitos dentro de límites normales. Se constató una hiperlipidemia dada por un incremento del colesterol total (7,42 mm/1). El electrocardiograma y el ecocardiograma transtorácico resultaron normales. La resonancia magnética (RMN) identificó un área de infarto isquémico subagudo que comprendía el núcleo lenticular y la cápsula interna izquierdos.\n \n El tratamiento consistió en anti-agregantes plaquetarios, estatinas y fisioterapia. El paciente fue egresado una semana después con evidente mejoría.\n", "section_annotation": { "gold": [ { "end_offset": 27, "label": "PRESENT_ILLNESS", "segment": "Paciente indio de 44 años, ", "start_offset": 0 }, { "end_offset": 86, "label": "PAST_MEDICAL_HISTORY", "segment": "hipertenso sin tratamiento por 10 años, fumador ocasional, ", "start_offset": 27 }, { "end_offset": 522, "label": "PRESENT_ILLNESS", "segment": "quien se levantó en la mañana previa al ingreso con debilidad en el hemicuerpo derecho, así como pérdida de sensibilidad en la hemicara derecha, cuadro que progresó en las siguientes 24 horas en forma de imposibilidad para la marcha, por lo que hubo de ingresar una vez que fue llevado al departamento de emergencias, donde se le constató una presión arterial de 165/105 mmHg, pulso de 92 latidos x' y 16 de frecuencia respiratoria x'. 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"note_text": "Paciente de sexo femenino, con diagnóstico de inercia colónica. En mayo de 2003, a los 46 años, se le realizó una colectomía total laparoscópica con anastomosis ileorrectal sin incidentes. Durante el postoperatorio evolucionó con taquicardia, dolor abdominal e hipotensión. Se practicó una laparotomía exploradora que evidenció necrosis de yeyuno distal e ileon, realizándose resección del intestino desde los 120 cm distales al Treitz, además de una yeyunostomía terminal y cierre del muñón rectal. La biopsia informó segmento de intestino delgado con hallazgos compatibles con enteropatía isquémica aguda. Evolucionó con fujos de 4.500 cc/día por yeyunostomía y desnutrición calórico-proteica. Manejada inicialmente con NPTC, en el día 12 post operatorio se inició alimentación por sonda nasoenteral y en el día 50 se logró alimentación oral exclusiva. Al alta toleró bien régimen oral con suplementos nutricionales. Hasta junio 2008 presentó 17 hospitalizaciones, 4 por cuadros de íleo mecánico, todos resueltos sin necesidad de cirugía, y 13 por episodios de deshidratación moderada secundaria a altos débitos de la ostomía, los que se manejaron con reposición hidroelectrolítica y ajuste de fármacos para disminuir fujo por yeyunostomía logrando volumen de deposiciones de 2.000-3.000 cc/día.\n El 26/06/08 ingresó nuevamente por cuadro de deshidratación grave. Se constató creatininemia de 4,39 mg/dl, objetivándose clearence de creatinina de 30 ml/min. Dado el deterioro de la función renal y compromiso nutricional de predominio calórico con IMC de 14,2 kg/m2 y albúmina de ingreso de 3,1 gr/dl, se planteó la realización de un procedimiento de elongación intestinal y reconstitución del tránsito para mejorar la condición clínica y calidad de vida de la paciente.\n El estudio preoperatorio incluyó una rectoscopia rígida que evidenció un muñón rectal de 12 cm. El tránsito intestinal demostró 140 cm de intestino delgado sin estrecheces y leve dilatación de asas. Por sospecha en la tomografía computada de compromiso de la arteria mesentérica superior (AMS), se realizó ecografía Doppler que mostró estenosis signifcativa (70%) de la AMS, que se resolvió mediante angioplastía y colocación de endoprótesis. Con aporte de régimen hipercalórico-hiperproteico y NPTC se logró optimización de parámetros nutricionales (albúmina: 3,8 mg/dl).\n Cinco semanas luego de la colocación de la endoprótesis se decidió operar a la paciente. En el intraoperatorio se midió intestino remanente con-frmando una longitud de 140 cm. Se desmanteló la yeyunostomía y se practicó una anastomosis mecánica término-terminal yeyunorectal. Luego se hicieron 15 secciones transversas parciales con cargas lineales de 3,5 mm para seccionar la mitad del lumen del intestino en forma de zig-zag según lo descrito por Kim9. La longitud fnal del intestino delgado fue de 180 cm, lo que sumado al muñón rectal da una longitud de 190 cm hasta el ano.\n \n Dentro de los eventos del postoperatorio destacó la formación de colecciones hemáticas intraabdominales, sin evidencias de fltración. Por persistencia de episodios febriles, se realizó eco-cardiograma que evidenció presencia de trombo séptico en aurícula derecha por lo que se inició tratamiento para endocarditis bacteriana.\n La paciente evolucionó afebril, con aumento progresivo del aporte por vía oral. El día 34 del post operatorio se suspendió la NPTC, logrando balance hidroelectrolitico y nutricional adecuado exclusivamente por vía oral. El estudio de tránsito intestinal a los 98 días post cirugía no demostró evidencias de las enterotomías.\n Actualmente en control ambulatorio, en tratamiento con loperamida y suplementos nutricionales, logrando adecuado balance hidroelectrolítico, aumento de peso y con una frecuencia de deposiciones de 5 veces por día con escurrimiento escaso.\n", "section_annotation": { "gold": [ { "end_offset": 27, "label": "PRESENT_ILLNESS", "segment": "Paciente de sexo femenino, ", "start_offset": 0 }, { "end_offset": 64, "label": "PAST_MEDICAL_HISTORY", "segment": "con diagnóstico de inercia colónica. ", "start_offset": 27 }, { "end_offset": 189, "label": "TREATMENT", "segment": "En mayo de 2003, a los 46 años, se le realizó una colectomía total laparoscópica con anastomosis ileorrectal sin incidentes. ", "start_offset": 64 }, { "end_offset": 274, "label": "EVOLUTION", "segment": "Durante el postoperatorio evolucionó con taquicardia, dolor abdominal e hipotensión. 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Consultó en marzo de 2007 con historia de siete años de evolución de dismenorrea invalidante, a pesar del uso de anticonceptivos orales, polimenorrea e hipermenorrea en los últimos ciclos menstruales, refriendo además dispareunia. Examen físico general y ginecológico normal en primera consulta. Se solicitó ecotomografía transvaginal que mostraba toda la cavidad endometrial ocupada por imagen hiperecogénica lineal con sombra acústica posterior, compatible con extensa metaplasia ósea.\n La histeroscopía mostró cavidad uterina de 7,5 cm, poco distensible, revestida en su totalidad por múltiples fragmentos espiculados de aspecto y consistencia ósea. Se realizó extracción de éstos con asa de resectoscopio asistido con cucharilla N° 2 y pinza Randall, sin incidentes. Posteriormente se observó cavidad endometrial sana y ostium tubarios permeables.\n Su laparoscopía exploradora mostró pelvis sana, útero y anexos normales, con buena relación tubo ovárica. Trompas permeables con índigo carmín.\n Biopsia operatoria estuvo constituida por fragmentos de tejido óseo maduro, reconociéndose además colonias de tipo Actinomyces. No se observaban evidencias de neoplasia. Los hallazgos fueron compatibles con metaplasia ósea del endometrio. Se indicaron anticonceptivos orales hasta deseo de embarazo.\n Una histerosonografía tres meses post cirugía mostraba cavidad uterina normal.\n En agosto de 2008 consultó cursando embarazo espontáneo único de 6 semanas de gestación confirmado ecográficamente. A las 39 semanas de gestación, se obtuvo un recién nacido sano de 3.380 g mediante operación cesárea por prueba de trabajo de parto fracasada. Durante la misma, se produjo inercia uterina que logró ser revertida con uso de retractores en altas dosis.\n \n", "section_annotation": { "gold": [ { "end_offset": 21, "label": "PRESENT_ILLNESS", "segment": "Paciente de 26 años, ", "start_offset": 0 }, { "end_offset": 121, "label": "PAST_MEDICAL_HISTORY", "segment": "IMC 21, con antecedente de legrado uterino por aborto provocado de primer trimestre, a los 17 años. ", "start_offset": 21 }, { "end_offset": 352, "label": "PRESENT_ILLNESS", "segment": "Consultó en marzo de 2007 con historia de siete años de evolución de dismenorrea invalidante, a pesar del uso de anticonceptivos orales, polimenorrea e hipermenorrea en los últimos ciclos menstruales, refriendo además dispareunia. ", "start_offset": 121 }, { "end_offset": 774, "label": "EXPLORATION", "segment": "Examen físico general y ginecológico normal en primera consulta. Se solicitó ecotomografía transvaginal que mostraba toda la cavidad endometrial ocupada por imagen hiperecogénica lineal con sombra acústica posterior, compatible con extensa metaplasia ósea.\n La histeroscopía mostró cavidad uterina de 7,5 cm, poco distensible, revestida en su totalidad por múltiples fragmentos espiculados de aspecto y consistencia ósea. ", "start_offset": 352 }, { "end_offset": 892, "label": "TREATMENT", "segment": "Se realizó extracción de éstos con asa de resectoscopio asistido con cucharilla N° 2 y pinza Randall, sin incidentes. ", "start_offset": 774 }, { "end_offset": 974, "label": "EVOLUTION", "segment": "Posteriormente se observó cavidad endometrial sana y ostium tubarios permeables.\n ", "start_offset": 892 }, { "end_offset": 1358, "label": "EXPLORATION", "segment": "Su laparoscopía exploradora mostró pelvis sana, útero y anexos normales, con buena relación tubo ovárica. Trompas permeables con índigo carmín.\n Biopsia operatoria estuvo constituida por fragmentos de tejido óseo maduro, reconociéndose además colonias de tipo Actinomyces. No se observaban evidencias de neoplasia. Los hallazgos fueron compatibles con metaplasia ósea del endometrio. ", "start_offset": 974 }, { "end_offset": 1420, "label": "TREATMENT", "segment": "Se indicaron anticonceptivos orales hasta deseo de embarazo.\n ", "start_offset": 1358 }, { "end_offset": 1500, "label": "EXPLORATION", "segment": "Una histerosonografía tres meses post cirugía mostraba cavidad uterina normal.\n ", "start_offset": 1420 }, { "end_offset": 1869, "label": "TREATMENT", "segment": "En agosto de 2008 consultó cursando embarazo espontáneo único de 6 semanas de gestación confirmado ecográficamente. A las 39 semanas de gestación, se obtuvo un recién nacido sano de 3.380 g mediante operación cesárea por prueba de trabajo de parto fracasada. Durante la misma, se produjo inercia uterina que logró ser revertida con uso de retractores en altas dosis.\n \n", "start_offset": 1500 } ] } }
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trasplante renal en 1999 que rechazó a los 8 meses, en hemodiálisis trisemanal desde el año 2000 e hipertensión arterial secundaria. Tratada con eritropoyetina, ácido fólico, atenolol y losartan. Consultó por una historia de cuatro meses de evolución, caracterizada por lesiones pruriginosas en manos, antebrazos y espalda. En el examen físico destacaban hiperpigmentación difusa, erosiones, úlceras y pápulas costrosas, ubicadas preferentemente en dorso de manos, antebrazos, tórax anterior y región interescapular. Se realizó biopsia de las lesiones que mostró piel con úlcera y costra fibrinoleucocitaria. El fondo de la úlcera con haces de colágeno de disposición vertical, epidermis adyacente con hiperortoqueratosis, acantosis y leve espongiosis. La dermis con leve infiltrado inflamatorio disperso y perivascular superfcial linfocitario, con algunos plasmocitos y neutróflos y foco hemorrágico. Los hallazgos informados fueron compatibles con colagenosis perforante de tipo reactivo. Se indicaron antihistamínicos orales y clobetasol 0,05% + cloranfenicol 2% con respuesta parcial a un año de seguimiento.\n \n", "section_annotation": { "gold": [ { "end_offset": 36, "label": "PRESENT_ILLNESS", "segment": "Paciente de 65 años, sexo femenino, ", "start_offset": 0 }, { "end_offset": 295, "label": "PAST_MEDICAL_HISTORY", "segment": "con antecedentes de insuficiencia renal crónica de larga data, trasplante renal en 1999 que rechazó a los 8 meses, en hemodiálisis trisemanal desde el año 2000 e hipertensión arterial secundaria. Tratada con eritropoyetina, ácido fólico, atenolol y losartan. ", "start_offset": 36 }, { "end_offset": 423, "label": "PRESENT_ILLNESS", "segment": "Consultó por una historia de cuatro meses de evolución, caracterizada por lesiones pruriginosas en manos, antebrazos y espalda. ", "start_offset": 295 }, { "end_offset": 1090, "label": "EXPLORATION", "segment": "En el examen físico destacaban hiperpigmentación difusa, erosiones, úlceras y pápulas costrosas, ubicadas preferentemente en dorso de manos, antebrazos, tórax anterior y región interescapular. Se realizó biopsia de las lesiones que mostró piel con úlcera y costra fibrinoleucocitaria. El fondo de la úlcera con haces de colágeno de disposición vertical, epidermis adyacente con hiperortoqueratosis, acantosis y leve espongiosis. La dermis con leve infiltrado inflamatorio disperso y perivascular superfcial linfocitario, con algunos plasmocitos y neutróflos y foco hemorrágico. Los hallazgos informados fueron compatibles con colagenosis perforante de tipo reactivo. ", "start_offset": 423 }, { "end_offset": 1165, "label": "TREATMENT", "segment": "Se indicaron antihistamínicos orales y clobetasol 0,05% + cloranfenicol 2% ", "start_offset": 1090 }, { "end_offset": 1214, "label": "EVOLUTION", "segment": "con respuesta parcial a un año de seguimiento.\n \n", "start_offset": 1165 } ] } }
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antecedentes mórbidos conocidos. Ingresó al servicio de urgencia luego de sufrir accidente de tránsito de baja energía sin presentar lesiones de consideración secundarias a el. Luego de una semana, consultó por presentar debilidad progresiva de extremidades inferiores, dorsalgia de moderada intensidad y dificultad para orinar. Al examen se constata con hipoestesia bilateral desde nivel D5 hacia distal, paraparesia moderada, hiperrefexia osteotendínea patelar y aquiliana bilateral con signo de Babinski positivo bilateral; se hospitalizó planteándose un trauma raquimedular complicado. El estudio de imágenes con radiografía (Rx) de columna dorsal mostraba aplastamiento de cuerpo D3. La tomografía axial computada (TC) y resonancia nuclear magnética (RM) de columna dorsal demostraron múltiples quistes de tamaño variable en la zona paravertebral derecha que compromete cuerpos vertebrales y elementos posteriores de D2, D3 y D4 e invasión del canal raquídeo junto a imagen de aplastamiento a nivel de D3 compatible con probable etiología hidatídica. Se realizó anamnesis dirigida donde el paciente señaló presentar dorsalgia de tres años de evolución con un episodio de disminución de fuerzas en extremidades inferiores que revirtió espontáneamente. Los exámenes (hemograma, pruebas de función hepática y renal) no mostraron alteraciones.\n \n Si inició tratamiento con albendazol y realizó hemilaminectomía D3-D4 con exéresis de quistes confirmando el estudio histopatológico el diagnóstico de hidatidosis ósea.\n El paciente evolucionó favorablemente recuperando movilidad completa de extremidades inferiores sin déficit esfinteriano. El estudio con Rx de tórax y ecografía abdominal no demostraron enfermedad hidatídica diseminada. Completa cuatro ciclos de albendazol.\n Luego de tres meses fue nuevamente intervenido quirúrgicamente por absceso dorsal hidatídico y 5 años después por nuevo episodio de paraparesia progresiva con nivel sensitivo en D5 realizándose laminectomía D3-D4 con exéresis de quistes.\n", "section_annotation": { "gold": [ { "end_offset": 18, "label": "PRESENT_ILLNESS", "segment": "Hombre de 24 años ", "start_offset": 0 }, { "end_offset": 93, "label": "PAST_MEDICAL_HISTORY", "segment": "con residencia rural en la IX región, sin antecedentes mórbidos conocidos. ", "start_offset": 18 }, { "end_offset": 1408, "label": "EXPLORATION", "segment": "Ingresó al servicio de urgencia luego de sufrir accidente de tránsito de baja energía sin presentar lesiones de consideración secundarias a el. Luego de una semana, consultó por presentar debilidad progresiva de extremidades inferiores, dorsalgia de moderada intensidad y dificultad para orinar. Al examen se constata con hipoestesia bilateral desde nivel D5 hacia distal, paraparesia moderada, hiperrefexia osteotendínea patelar y aquiliana bilateral con signo de Babinski positivo bilateral; se hospitalizó planteándose un trauma raquimedular complicado. El estudio de imágenes con radiografía (Rx) de columna dorsal mostraba aplastamiento de cuerpo D3. La tomografía axial computada (TC) y resonancia nuclear magnética (RM) de columna dorsal demostraron múltiples quistes de tamaño variable en la zona paravertebral derecha que compromete cuerpos vertebrales y elementos posteriores de D2, D3 y D4 e invasión del canal raquídeo junto a imagen de aplastamiento a nivel de D3 compatible con probable etiología hidatídica. 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La punción lumbar resultó negativa para VDRL, toxoplasma y VEB (por técnica de PCR). Los estudios hematológicos mostraron una anemia leve con Hb de 10,3 g/dL (ref. 13,5-17,5 g/dL), Hto 30% (ref. 41-53%), leucopenia con 3.100 leucocitos/mm3 (ref. 4.500-11.000/mm3) y linfopenia con 800/mm3 (ref. 1.000-4.800/mm3). LDH y proteína C reactiva se encontraban dentro de límites normales (133 U/L [ref. 135-225 U/L] y 0,1 mg/dL [ref. 0-1 mg/dL], respectivamente). El paciente presentaba además severo estado de inmunosupresión con un recuento de linfocitos T CD4 de 6,9/mm3.\n Los estudios de imágenes revelaron 2 nódulos córtico-subcorticales en zonas frontal media y derecha de aspecto inflamatorio. No había compromiso pulmonar ni de otros sitios anatómicos. Se realizó biopsia estereotáxica que mostró tejido cerebral con gliosis reactiva y extenso infiltrado celular mixto, predominantemente perivascular y zonas con angiotropismo y angiodestruccción compuestas por linfocitos pequeños inmunorreactivos para CD3 (linfocitos T). Además se identificaron abundantes células linfoides atípicas medianas y grandes, de núcleos vesiculosos y pleomórficos inmunorreactivas para CD20 (linfocitos B). Los linfocitos mostraron reacción positiva para la secuencia pequeña de ARN asociado al VEB EBER-1 mediante hibridización in situ. Estas células mostraron reacción negativa para CD30, CD68 y proteína S-100. No se identificaron microorganismos en la biopsia con tinciones de Gram, PAS, Ziehl-Neelsen y Warthin-Starry.\n \n La citometría de flujo del tejido cerebral reveló presencia de células atípicas medianas de estirpe B con restricción de cadena ligera Kappa, sugerentes de un síndrome linfoproliferativo. El mielograma y la biopsia de médula ósea resultaron negativos. En conjunto, los hallazgos fueron compatibles con GL cerebral grado 3 (linfoma B difuso de células grandes).\n El caso comunicado en el presente artículo fue confirmado como síndrome de inmunodeficiencia por virus VIH etapa C3 y se inició terapia antirretroviral. El paciente solicitó posteriormente su traslado a otro centro para continuar manejo.\n", "section_annotation": { "gold": [ { "end_offset": 26, "label": "PRESENT_ILLNESS", "segment": "Hombre de 34 años de edad ", "start_offset": 0 }, { "end_offset": 73, "label": "PAST_MEDICAL_HISTORY", "segment": "con antecedentes de hepatitis B y VIH positivo ", "start_offset": 26 }, { "end_offset": 157, "label": "PRESENT_ILLNESS", "segment": "que consultó por decaimiento, baja de peso, dolor torácico y conducta frontalizada. ", "start_offset": 73 }, { "end_offset": 2027, "label": "EXPLORATION", "segment": "La punción lumbar resultó negativa para VDRL, toxoplasma y VEB (por técnica de PCR). Los estudios hematológicos mostraron una anemia leve con Hb de 10,3 g/dL (ref. 13,5-17,5 g/dL), Hto 30% (ref. 41-53%), leucopenia con 3.100 leucocitos/mm3 (ref. 4.500-11.000/mm3) y linfopenia con 800/mm3 (ref. 1.000-4.800/mm3). LDH y proteína C reactiva se encontraban dentro de límites normales (133 U/L [ref. 135-225 U/L] y 0,1 mg/dL [ref. 0-1 mg/dL], respectivamente). El paciente presentaba además severo estado de inmunosupresión con un recuento de linfocitos T CD4 de 6,9/mm3.\n Los estudios de imágenes revelaron 2 nódulos córtico-subcorticales en zonas frontal media y derecha de aspecto inflamatorio. No había compromiso pulmonar ni de otros sitios anatómicos. Se realizó biopsia estereotáxica que mostró tejido cerebral con gliosis reactiva y extenso infiltrado celular mixto, predominantemente perivascular y zonas con angiotropismo y angiodestruccción compuestas por linfocitos pequeños inmunorreactivos para CD3 (linfocitos T). Además se identificaron abundantes células linfoides atípicas medianas y grandes, de núcleos vesiculosos y pleomórficos inmunorreactivas para CD20 (linfocitos B). Los linfocitos mostraron reacción positiva para la secuencia pequeña de ARN asociado al VEB EBER-1 mediante hibridización in situ. Estas células mostraron reacción negativa para CD30, CD68 y proteína S-100. No se identificaron microorganismos en la biopsia con tinciones de Gram, PAS, Ziehl-Neelsen y Warthin-Starry.\n \n La citometría de flujo del tejido cerebral reveló presencia de células atípicas medianas de estirpe B con restricción de cadena ligera Kappa, sugerentes de un síndrome linfoproliferativo. El mielograma y la biopsia de médula ósea resultaron negativos. En conjunto, los hallazgos fueron compatibles con GL cerebral grado 3 (linfoma B difuso de células grandes).\n ", "start_offset": 157 }, { "end_offset": 2180, "label": "TREATMENT", "segment": "El caso comunicado en el presente artículo fue confirmado como síndrome de inmunodeficiencia por virus VIH etapa C3 y se inició terapia antirretroviral. ", "start_offset": 2027 }, { "end_offset": 2265, "label": "DERIVED_FROM/TO", "segment": "El paciente solicitó posteriormente su traslado a otro centro para continuar manejo.\n", "start_offset": 2180 } ] } }
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Los cultivos y las serologías para virus herpes y CMV fueron negativos, además de todas las serologías al igual que los pacientes previos. Recibió tratamiento antibiótico empírico. A las dos semanas de su ingreso presentó fiebre y empeoramiento de las imágenes radiológicas basales derechas. Se realizó BAL que no mostró crecimiento bacteriano. El paciente desarrolló paulatinamente citopenias de las tres series: Hb: 7 g/l; recuento de leucocitos: 1.600/ mm3; plaquetas: 49.000 /mm3. La ferritina fue de 4.000 µg/l, trigliceridos 607 mg/dl, fibrinógeno 111%. Se le realizó una PAMO que mostró un aumento de macrófagos en 10% con hemofa-gocitosis. Al examen físico solo presentó ligera hepato esplenomegalia.\n Se le administró metilprednisona a una dosis de 1 g/día por tres días y gammaglobulina en dosis de 400 mg/kg/día por 5 días. Evolucionó con fiebre persistente y requerimiento de asistencia respiratoria mecánica. Las citopenias no mejoraron. Se repitieron cultivos que siempre fueron negativos, a excepción de un BAL que evidenció el crecimiento significativo de una Acinetobacter baumannii multirresistente que recibió tratamiento. Falleció a los 44 días del ingreso con falla multiorgánica.\n", "section_annotation": { "gold": [ { "end_offset": 18, "label": "PRESENT_ILLNESS", "segment": "Hombre de 72 años ", "start_offset": 0 }, { "end_offset": 50, "label": "PAST_MEDICAL_HISTORY", "segment": "sin antecedentes de importancia ", "start_offset": 18 }, { "end_offset": 131, "label": "PRESENT_ILLNESS", "segment": "que ingresó por insuficiencia respiratoria y fiebre con diagnóstico de neumonía. ", "start_offset": 50 }, { "end_offset": 270, "label": "EXPLORATION", "segment": "Los cultivos y las serologías para virus herpes y CMV fueron negativos, además de todas las serologías al igual que los pacientes previos. ", "start_offset": 131 }, { "end_offset": 312, "label": "TREATMENT", "segment": "Recibió tratamiento antibiótico empírico. ", "start_offset": 270 }, { "end_offset": 841, "label": "EXPLORATION", "segment": "A las dos semanas de su ingreso presentó fiebre y empeoramiento de las imágenes radiológicas basales derechas. Se realizó BAL que no mostró crecimiento bacteriano. El paciente desarrolló paulatinamente citopenias de las tres series: Hb: 7 g/l; recuento de leucocitos: 1.600/ mm3; plaquetas: 49.000 /mm3. La ferritina fue de 4.000 µg/l, trigliceridos 607 mg/dl, fibrinógeno 111%. Se le realizó una PAMO que mostró un aumento de macrófagos en 10% con hemofa-gocitosis. Al examen físico solo presentó ligera hepato esplenomegalia.\n ", "start_offset": 312 }, { "end_offset": 966, "label": "TREATMENT", "segment": "Se le administró metilprednisona a una dosis de 1 g/día por tres días y gammaglobulina en dosis de 400 mg/kg/día por 5 días. 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Presentó un síndrome hepatorenal que motivó un importante aporte de volumen y furosemida, sin obtener respuesta diurética. A las 24 horas de esto se encontró donante. En ese momento el paciente estaba soporoso, con escasa respuesta a estímulos verbales, PA 110/60, FC 115 por minuto, frecuencia respiratoria 35x'. Un ecocardiograma de superficie mostró buena función ventricular global, dilatación de las cuatro cavidades y presión sistólica de arteria pulmonar (PSAP) de 50 mmHg. En pabellón, se intubó e instaló sonda para ETE y CAP que mostró una PVC de 25 mmHg, PCP 26 mm Hg, RVSI de 987 dinas*segundo/cm5/m2. El IC y PSAP medidas por CAP y ETE fueron respectivamente 4,7 y 5,3 1/ m2, y 49/32 y 48. El volumen de fin de diástole del ventrículo izquierdo indexado (VFDVII) fue 98 ml/m2 (valor normal: 35-75 ml/m2). Se aportaron fluidos de manera muy restringida, observándose durante todo el procedimiento buena concordancia entre los valores de IC y PSAP medidos con CAP y ETE. Al término de la cirugía la PVC era 14 mmHg, PCP 19 mmHg, PAP 33/22 e IC 5,1/ m2. El ETE mostraba una PSAP de 32, IC de 5 1/ m2,y VFDVI67ml/m2.\n", "section_annotation": { "gold": [ { "end_offset": 221, "label": "PRESENT_ILLNESS", "segment": "Paciente de 59 años, candidato a trasplante hepático. Presentó un síndrome hepatorenal que motivó un importante aporte de volumen y furosemida, sin obtener respuesta diurética. A las 24 horas de esto se encontró donante. ", "start_offset": 0 }, { "end_offset": 872, "label": "EXPLORATION", "segment": "En ese momento el paciente estaba soporoso, con escasa respuesta a estímulos verbales, PA 110/60, FC 115 por minuto, frecuencia respiratoria 35x'. Un ecocardiograma de superficie mostró buena función ventricular global, dilatación de las cuatro cavidades y presión sistólica de arteria pulmonar (PSAP) de 50 mmHg. En pabellón, se intubó e instaló sonda para ETE y CAP que mostró una PVC de 25 mmHg, PCP 26 mm Hg, RVSI de 987 dinas*segundo/cm5/m2. 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Al ingreso se realizó un AngioTAC que evidenció una masa tumoral, intracavitaria en aurícula izquierda infiltrativa a venas pulmonares.\n \n Se complementó con ecocardiograma confirmando masa hiperdensa de 43 x 38 mm ocupando el 75% de la aurícula izquierda.\n \n Se resecó quirúrgicamente cerca de 95% del tumor por infiltración a venas pulmonares.\n \n El examen histológico demostró la presencia de un tumor fusado con algunas células ovaladas, pericitos, que se disponían en un patrón sólido, interrumpido por espacios vasculares delgados, revestidos por células endoteliales y aplanadas.\n \n El estudio con inmuno-histoquímica demostró reactividad positiva para vimentina en las células proliferantes, CD-34 positivo en el endotelio de los vasos y pericitos, factor VIII positivo sólo en endotelio, así como negatividad para S-100 y CD-68. Estos hallazgos, junto con el claro patrón de reticulina en las técnicas argénticas, indicaron el carácter pericítico de la neoplasia y se confirmó su carácter benigno histológico, con un índice mitótico inferior a tres mitosis por 10 campos de mayor aumento.\n El paciente evolucionó satisfactoriamente post cirugía y se decidió el alta.\n Al mes siguiente, volvió a consultar por presentar dolor cervical intenso asociado a odinofagia. Se realizó estudio de diseminación con PET-CP que mostraba zonas hipermetabólicas en pulmón, base de cráneo, hígado, amígdala izquierda, aurícula izquierda, suprarrenal izquierda, cola de páncreas y colon descendente. Esto se explicó por embolización del tumor a la circulación sistémica.\n Se presentó caso a comité oncológico que decidió manejo paliativo y del dolor. A los 2 meses, el paciente falleció de falla multiorgánica.\n", "section_annotation": { "gold": [ { "end_offset": 235, "label": "PRESENT_ILLNESS", "segment": "Paciente de 41 años, sin antecedentes mórbidos de importancia, que consultó por cuadro de un mes de evolución, caracterizado por disnea de rápida progresión, asociado a tos con expectoración hemoptoica y compromiso del estado general. 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"boundary": null, "end_offset": 4482, "span": "posterior", "start_offset": 4473 }, { "boundary": null, "end_offset": 4485, "span": "al", "start_offset": 4483 }, { "boundary": null, "end_offset": 4500, "span": "procedimiento.", "start_offset": 4486 }, { "boundary": null, "end_offset": 4503, "span": "\n \n", "start_offset": 4500 } ] }, "note_id": "S0034-98872011000800011-1", "note_text": "Hombre de 73 años con antecedentes de hipertensión arterial en tratamiento con valsartán e hidroclorotiazida y trombocitemia esencial bajo terapia inicialmente con hidroxiurea y luego anagrelide.\n A mediados de diciembre de 2007 consultó porque desde hacía 8 meses presentaba fatigabilidad, astenia, adinamia, sudoración nocturna, disnea de esfuerzo y tos seca frecuente no productiva. No había tenido fiebre, baja de peso ni prurito. El electrocardiograma y radiografía de tórax fueron normales, salvo elongación aórtica moderada y el ecocardiograma mostró insuficiencia aórtica leve, aurícula y ventrículo izquierdo de tamaño y función conservada. En el hemograma destacaba hematocrito de 29%, macrocitosis, rouleaux ++, VHS 49 mm/hora y plaquetas de 717.000 mm3. Los exámenes generales fueron normales. Una semana después presentó esputo hemoptoico y fue hospitalizado por sospecha de embolia pulmonar. Se realizó un AngioTAC de tórax que descartó trombos pero mostró que la pared de la aorta ascendente, sobre el plano valvular aórtico, estaba cubierta por un tejido hipodenso, que se extendía por la aorta abdominal hasta la arteria mesentérica inferior. También presentaban un halo similar las arterias subclavia izquierda, renales y mesentérica superior (AMS). Las arterias renales y mesentéricas estaban estenosadas, el tronco celíaco presentaba dilatación post-estenótica y el flujo sanguíneo por la AMS era filiforme. Existía un leve derrame pericárdico, esplenomegalia de 15 cm y edema perinéfrico bilateral. El cintigrama renal mostró disminución de la perfusión y función del riñón izquierdo (RD 62%, RI 38%). Los vasos del cuello eran normales en la ecografía. En la angioresonancia el tejido periaórtico se reforzó con gadolinio concluyéndose que era un tejido inflamatorio-fibroso. La estenosis de AMS era crítica; las dos arterias renales izquierdas y el tronco celíaco presentaban estenosis de 70% y la arteria renal derecha y mesentérica inferior, estenosis de 50%. Los senos renales y áreas perinéfricas estaban ocupados por el tejido que envolvía a la aorta. Se instaló stents en AMS y en ambas arterias renales, mejorando la perfusión. El radiólogo planteó ECD. El cintigrama óseo fue compatible con dicho diagnóstico al mostrar un aumento de captación en fémures y tibias. Se inició tratamiento con prednisona 60 mg/día y metotrexato 10 mg semanales, con mejoría sintomática por lo que se redujo en forma gradual la dosis de corticoides hasta 10 mg. Tres meses después (marzo de 2008) fue hospitalizado por neumonía y tuvo una buena respuesta al tratamiento antibiótico. A los 12 meses del diagnóstico (diciembre de 2008) y estando el paciente prácticamente asintomático, salvo edema de piernas atribuido al uso de anagrelide, persistía anémico y con leucocitosis. Un scanner mostró aumento del grosor del tejido periaórtico tanto en aorta ascendente como descendente y prolongación hasta el inicio de arterias ilíacas primitivas. A los 18 meses (julio de 2009), por dolor en rodillas se tomó radiografías que mostraron osteoesclerosis en fémures y tibias en la misma localización que las alteraciones del cintigrama óseo y calcificaciones del cartílago compatibles con condrocalcinosis. Un nuevo scanner, mostró persistencia de los hallazgos previos y aumento (70%) en la estenosis de la arteria mesentérica inferior. A 28 meses del diagnóstico (abril de 2010), el paciente comenzó a presentar signos de insuficiencia cardiaca congestiva. El scanner mostró acentuación del tejido perirrenal, engrosamiento de las pleuras bibasales y aumento en la cantidad de líquido en el pericardio. El ecocardiograma mostró un gran derrame pericárdico con signos iniciales de taponamiento y superficie pericárdica irregular sugerente de infiltración tumoral. El electrocardiograma mostró bajo voltaje. Fue hospitalizado efectuándose una ventana pleuro-pericárdica. Durante la operación se encontró el pericardio a tensión drenando 1.200 ml de un líquido amarillo pardusco. El pericardio parietal era de aspecto normal y el visceral estaba infiltrado difusamente por un tejido duro. El líquido pericárdico tenía abundantes histiocitos al igual que el tejido pericárdico parietal resecado, que tenía infiltración por células de citoplasma granular y espumoso y el análisis inmunohistoquímico confirmó que dichas células correspondían a histiocitos, CD68 (+), CD1a (-) y proteína S100 (-), confirmando la ECD. 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al que se agrega dolor abdominal epigástrico intenso, sensación de distensión abdominal y compromiso del estado general. Se diagnostica mal de altura agudo, recibiendo furosemida, acetazolamida, dexametasona, ranitidina y ceftriaxona.\n En Chile, 6 días después consultó por persistir con idéntica sintomatología y fue derivado al Servicio de Urgencia del Hospital Clínico Universidad de Chile por sospecha de tromboembolismo pulmonar. Ingresó afebril, disneico, con tope inspiratorio y distensión abdominal. Tenía antecedentes de síndrome de apnea-hipopnea del sueño, trastorno bipolar manejado con ácido valproico, rinitis alérgica, várices en miembros inferiores, apendicectomizado, tabáquico de 10 paquetes-año, bebedor de 2 copas de vino diarias por 30 años.\n Signos vitales: Pulso 81, ventilación 18 por minuto, presión arterial 102-67 mmHg, temperatura axilar 36°C. Al examen: en decúbito dorsal, consciente, hidratado, bien perfundido, piel blanca, pálida. Destacaba abdomen doloroso en hipocondrio izquierdo, con bazo aumentado de tamaño, várices en extremidades inferiores. El resto del examen era normal.\n Exámenes de laboratorio: hemograma con hematocrito 27,1%, hemoglobina 8,7 g/dl, VCM y CHCM normales, leucocitos 10.100/uL, VHS 28 mm/hr, tiempo de protrombina y TTPK normales. Dímero D 4.683 ng/ml (normal < 500), LDH en sangre 1.247 (rango: 313-618), proBNP, CK, CK-MB y troponinas normales. Angio-TAC pulmonar descartó tromboembolismo y demostró un hematoma periesplénico, subcapsular de 17 cm, El paciente fue ingresado a cuidados intermedios con diagnóstico probable de infarto esplénico con transformación hemorrágica.\n \n Hemogramas seriados no mostraron cambios, se realizó ecocardiografía que resultó normal y una tomografía de control que reveló crecimiento del hematoma esplénico a 19 cm de diámetro. Ante estabilidad clínica fue trasladado a sala en cirugía.\n La clínica y el laboratorio no sugerían etiologías infecciosas de su hematoma esplénico, y no había elementos sospechosos de síndromes mieloproliferativos, linfoproliferativos u otra neoplasia en los estudios de tomografía y bioquímicos. Hemogramas previos a este evento eran normales. Ante el cuadro de síndrome esplénico, pese a ser una causa rara, fue estudiado para un posible rasgo falciforme con una prueba de inducción de drepanocitos con metabisulfito de sodio al 2%, que fue positiva. Dada la evolución intrahospitalaria favorable, acompañado de laboratorio general y estudios radiológicos sin progresión, se decidió no intervenir quirúrgicamente y el paciente fue dado de alta.\n \n En control ambulatorio por hematología se solicitó electroforesis de hemoglobina en medio alcalino que reveló hemoglobina normal A 54,8% y 41,8% de fracción 3, compatible con hemoglobina S y se diagnosticó rasgo falciforme.\n", "section_annotation": { "gold": [ { "end_offset": 18, "label": "PAST_MEDICAL_HISTORY", "segment": "Paciente chileno, ", "start_offset": 0 }, { "end_offset": 243, "label": "PRESENT_ILLNESS", "segment": "masculino, de 59 años, que de viaje en el Cuzco, Perú, inicia súbitamente un cuadro de disnea en reposo al que se agrega dolor abdominal epigástrico intenso, sensación de distensión abdominal y compromiso del estado general. 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"start_offset": 2663 }, { "boundary": null, "end_offset": 2674, "span": "la", "start_offset": 2672 }, { "boundary": null, "end_offset": 2685, "span": "asociación", "start_offset": 2675 }, { "boundary": null, "end_offset": 2689, "span": "con", "start_offset": 2686 }, { "boundary": null, "end_offset": 2698, "span": "complejo", "start_offset": 2690 }, { "boundary": null, "end_offset": 2701, "span": "de", "start_offset": 2699 }, { "boundary": null, "end_offset": 2708, "span": "Carney", "start_offset": 2702 }, { "boundary": null, "end_offset": 2710, "span": "y", "start_offset": 2709 }, { "boundary": null, "end_offset": 2719, "span": "síndrome", "start_offset": 2711 }, { "boundary": null, "end_offset": 2722, "span": "de", "start_offset": 2720 }, { "boundary": null, "end_offset": 2737, "span": "Peutz-Jeghers.", "start_offset": 2723 }, { "boundary": null, "end_offset": 2738, "span": "\n", "start_offset": 2737 } ] }, "note_id": "S0034-98872011001000012-1", "note_text": "Paciente de sexo masculino de 14 años, sin antecedentes mórbidos, quien consultó luego de sufrir trauma de baja intensidad (pelotazo) en zona genital.\n Al examen físico presentaba dolor que dificultaba la palpación, evidenciándose un aumento de volumen asimétrico testicular izquierdo, sin otras lesiones asociadas. Se solicitó ecotomografía testicular presentándose a control luego de transcurridos 5 meses, constatándose clínicamente una masa indurada en testículo izquierdo de aproximadamente 2 cm de diámetro mayor, no dolorosa y sin compromiso escrotal; testículo derecho y pene sin alteraciones. La ultrasonografía demostró en el espesor del testículo izquierdo un nódulo de 18 x 19 x 15 mm, bien delimitado, de paredes hiperecogénicas con sombra acústica posterior. El testículo derecho, epidídimos y cordones espermáticos no presentan alteraciones de su ecoestructura. El estudio serológico para marcadores tumorales (α-feto proteína y hormona gonadotropina coriónica sub-unidad β) fueron normales. Se complementó estudio con tomografía computada (TC) de pelvis, abdomen y tórax las que no demostraron lesiones secundarias.\n \n Se efectuó enucleación del tumor y biopsia intra-operatoria. Se examinó un fragmento de tejido testicular de 5 g de 35 x 17 x 15 mm presentando en la superficie de corte una lesión subcapsular redondeada, bien delimitada, amarillenta, de consistencia firme de 22 mm de diámetro mayor, con áreas grumosas de aspecto arenoso. El corte histológico por congelación y diferido demostró una lesión que presentaba nidos y cordones conformados por células ovales a poligonales de núcleos grandes, excéntricos y con nucléolo prominente, el citoplasma es eosinófilo y abundante, apreciándose infiltrado inflamatorio polimorfonuclear neutrófilo en la región central del tumor y linfocitos en la periferia en partes formando agregados linfoides. El estroma es en partes hialino con áreas de degeneración mixoide y abundantes calcificaciones dispuestas a nivel intersticial y en el lumen de los nidos tumorales, concluyéndose en la biopsia contemporánea un tumor de células de Sertoli calcificado. No se observó extensión tumoral intratubular, figuras mitóticas, necrosis, acentuada atipía citológica ni extensión tumoral extra-testicular. El estudio inmunohistoquímico demostró intensa positividad para α-inhibina, S-100 y vimentina; con un índice de proliferación (Ki-67) bajo (< 1%).\n \n Se completó la cirugía realizándose orquiectomía radical. No se registraron complicaciones post-operatorias. A los 8 meses post-cirugía, el paciente se encuentra sano, sin evidencia de enfermedad en TC de tórax-abdomen y pelvis; descartándose en este paciente la asociación con complejo de Carney y síndrome de Peutz-Jeghers.\n", "section_annotation": { "gold": [ { "end_offset": 39, "label": "PRESENT_ILLNESS", "segment": "Paciente de sexo masculino de 14 años, ", "start_offset": 0 }, { "end_offset": 152, "label": "PAST_MEDICAL_HISTORY", "segment": "sin antecedentes mórbidos, quien consultó luego de sufrir trauma de baja intensidad (pelotazo) en zona genital.\n ", "start_offset": 39 }, { "end_offset": 1135, "label": "EXPLORATION", "segment": "Al examen físico presentaba dolor que dificultaba la palpación, evidenciándose un aumento de volumen asimétrico testicular izquierdo, sin otras lesiones asociadas. Se solicitó ecotomografía testicular presentándose a control luego de transcurridos 5 meses, constatándose clínicamente una masa indurada en testículo izquierdo de aproximadamente 2 cm de diámetro mayor, no dolorosa y sin compromiso escrotal; testículo derecho y pene sin alteraciones. La ultrasonografía demostró en el espesor del testículo izquierdo un nódulo de 18 x 19 x 15 mm, bien delimitado, de paredes hiperecogénicas con sombra acústica posterior. El testículo derecho, epidídimos y cordones espermáticos no presentan alteraciones de su ecoestructura. El estudio serológico para marcadores tumorales (α-feto proteína y hormona gonadotropina coriónica sub-unidad β) fueron normales. Se complementó estudio con tomografía computada (TC) de pelvis, abdomen y tórax las que no demostraron lesiones secundarias.\n \n ", "start_offset": 152 }, { "end_offset": 1196, "label": "TREATMENT", "segment": "Se efectuó enucleación del tumor y biopsia intra-operatoria. ", "start_offset": 1135 }, { "end_offset": 2412, "label": "EXPLORATION", "segment": "Se examinó un fragmento de tejido testicular de 5 g de 35 x 17 x 15 mm presentando en la superficie de corte una lesión subcapsular redondeada, bien delimitada, amarillenta, de consistencia firme de 22 mm de diámetro mayor, con áreas grumosas de aspecto arenoso. El corte histológico por congelación y diferido demostró una lesión que presentaba nidos y cordones conformados por células ovales a poligonales de núcleos grandes, excéntricos y con nucléolo prominente, el citoplasma es eosinófilo y abundante, apreciándose infiltrado inflamatorio polimorfonuclear neutrófilo en la región central del tumor y linfocitos en la periferia en partes formando agregados linfoides. El estroma es en partes hialino con áreas de degeneración mixoide y abundantes calcificaciones dispuestas a nivel intersticial y en el lumen de los nidos tumorales, concluyéndose en la biopsia contemporánea un tumor de células de Sertoli calcificado. No se observó extensión tumoral intratubular, figuras mitóticas, necrosis, acentuada atipía citológica ni extensión tumoral extra-testicular. El estudio inmunohistoquímico demostró intensa positividad para α-inhibina, S-100 y vimentina; con un índice de proliferación (Ki-67) bajo (< 1%).\n \n ", "start_offset": 1196 }, { "end_offset": 2470, "label": "TREATMENT", "segment": "Se completó la cirugía realizándose orquiectomía radical. ", "start_offset": 2412 }, { "end_offset": 2738, "label": "EVOLUTION", "segment": "No se registraron complicaciones post-operatorias. 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Durante este período se agregó baja de peso de 30 kg, cefalea, dolor polineuropático en guante y en calcetín y poliartralgias. En los últimos meses, había aparecido aumento de volumen blando, indoloro, progresivo, en ambos hombros, antebrazo derecho y ambos muslos, inmovilidad articular de ambas manos y rodillas, postración y diarrea las últimas dos semanas. Fue derivada a nuestro hospital para estudio de posible enfermedad reumatológica. Al examen físico se evidenció paciente caquéctica, pálida, postrada. Destacó macroglosia con lengua geográfica, masas gomosas en ambos hombros (periarticulares) de 6 cm: signo de shoulder pad, masa de 3 cm en antebrazo derecho y 12 cm en ambos muslos, manos contracturadas en flexión y rigidez de ambas rodillas. Los exámenes de laboratorio mostraron hemoglobina 8,7 g/dL, creatinina 6,5 mg/dL, calcemia 12 mg/dL, albúmina 1,9 g/L, proteína total 5,4 g/dL y triglicéridos 450 mg/dL. Debido a la fuerte sospecha de mieloma múltiple y amiloidosis asociada, se realizó mielograma que mostró infiltrado de 25% de células plasmáticas. El inmunofenotipo de médula ósea mostró presencia de células plasmáticas con restricción de cadena liviana lambda y diagnóstico de mieloma. La electroforesis de proteínas mostró un pequeño componente M en G1 y cuantificación de inmunoglobulinas muy disminuidas, IgA 27,7 mg/dL, IgG e IgM de 8,8 mg/dL. No fue posible estudiar proteinuria ya que la paciente no presentaba diuresis. La biopsia de masa de muslo izquierdo, informó tejido fibroadiposo, escaso tejido muscular estriado y depósitos positivos para Rojo Congo, confirmando el diagnóstico de amiloidosis. Las radiografías óseas mostraron lesiones líticas en cadera y fémur derecho y aumento de partes blandas en correspondencia a masas descritas anteriormente, sin relación con estructuras óseas. Una electromiografía mostró una neuropatía por atrapamiento de nervio peroneo y nervio mediano derecho. Se realizó un TAC de tórax, abdomen y pelvis, que mostró depósitos de partes blandas en hombros (periarticulares), pericardio, pared intestinal, hepatomegalia y aumento de volumen de cabeza de páncreas. No se realizó ecocardiograma. Se concluyó que se trataba de mieloma múltiple, amiloidosis asociada e insuficiencia renal terminal. Recibió bisfosfonatos, con reducción de la hipercalcemia y se inició tratamiento con melfalan 10 mg/día y prednisona 40 mg/día por 4 días. Luego se agregó talidomida 50 mg/día. Lamentablemente, la paciente falleció al mes de tratamiento.\n \n", "section_annotation": { "gold": [ { "end_offset": 18, "label": "PRESENT_ILLNESS", "segment": "Mujer de 53 años, ", "start_offset": 0 }, { "end_offset": 279, "label": "PAST_MEDICAL_HISTORY", "segment": "domiciliada en Calama, con diagnóstico de insuficiencia renal terminal de causa desconocida, en programa de hemodiálisis hacía 1 año. Durante este período se agregó baja de peso de 30 kg, cefalea, dolor polineuropático en guante y en calcetín y poliartralgias. ", "start_offset": 18 }, { "end_offset": 513, "label": "PRESENT_ILLNESS", "segment": "En los últimos meses, había aparecido aumento de volumen blando, indoloro, progresivo, en ambos hombros, antebrazo derecho y ambos muslos, inmovilidad articular de ambas manos y rodillas, postración y diarrea las últimas dos semanas. 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Como único antecedente, comunicó una tos leve los últimos 4-5 días antes de admisión a la clínica. Una evaluación urológica descartó uropatía obstructiva. Al examen neurológico estaba alerta, febril (38°C), sin déficits en nervios craneales. La fuerza en los miembros superiores era normal, pero se observó una debilidad moderada en las extremidades inferiores con incapacidad para levantarse desde una posición sentada. Los reflejos plantares eran extensores, había déficit sensorial en la parte posterior del cuello y a nivel del dermatoma D6. Los exámenes de rutina: hemograma, velocidad de sedimentación, proteína C reactiva, hemocultivos y urocultivos fueron negativos El análisis del LCR mostró 35 glóbulos blancos por mm3, con predominio de células mononucleares. La proteínorraquia fue 75 mg/dl. No se detectaron bandas oligoclonales. La detección de ARN viral por técnica de PCR-Microarray (Entherpex®, Genomica, España), fue positiva en el LCR sólo para VHH-7. Los herpes virus VHS-1, VHS-2, VHH-6, Epstein-Barr, VVZ, citomegalovirus y también anterovirus fueron negativos. El test para VIH y HTLV-1 fue negativo, así como pruebas inmunológicas para vasculitis y test serológico para Mycoplasma pneumoniae. La resonancia magnética (RNM) cerebral fue normal y la RNM de médula evidenció lesiones inflamatorias, difusas, extensas en los segmentos cervical, y dorsal de la médula (ver Figuras 1 y 2).\n \n Se inició metilprednisolona 1 g al día durante 3 días y ganciclovir iv 300 mg al día. A las 48 h el paciente recuperó la fuerza en extremidades por completo; la retención urinaria persistió por 1 mes para resolverse por completo en el segundo mes de seguimiento.\n El control de LCR a los 10 días mostró una PCR negativa para virus de la familia Herpesviridae. Se observaron 15 células con proteinas en rango normal. La repetición de la PCR en la muestra inicial de LCR, tomada al ingreso, también fue negativa. El diagnóstico de alta fue mielitis viral asociada a HHV-7.\n Los controles posteriores a los 6 meses de evolución evidenciaron un paciente sano, sin signos de haber desarrollado inmunodeficiencia.\n \n", "section_annotation": { "gold": [ { "end_offset": 30, "label": "PRESENT_ILLNESS", "segment": "Un hombre de 34 años de edad, ", "start_offset": 0 }, { "end_offset": 59, "label": "PAST_MEDICAL_HISTORY", "segment": "ingeniero, previamente sano, ", "start_offset": 30 }, { "end_offset": 220, "label": "PRESENT_ILLNESS", "segment": "presentó en el curso de 24 horas, fiebre, retención urinaria, debilidad de las extremidades inferiores y déficits sensoriales irregulares en el tórax y abdomen. ", "start_offset": 59 }, { "end_offset": 375, "label": "PAST_MEDICAL_HISTORY", "segment": "Como único antecedente, comunicó una tos leve los últimos 4-5 días antes de admisión a la clínica. Una evaluación urológica descartó uropatía obstructiva. 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Los herpes virus VHS-1, VHS-2, VHH-6, Epstein-Barr, VVZ, citomegalovirus y también anterovirus fueron negativos. El test para VIH y HTLV-1 fue negativo, así como pruebas inmunológicas para vasculitis y test serológico para Mycoplasma pneumoniae. La resonancia magnética (RNM) cerebral fue normal y la RNM de médula evidenció lesiones inflamatorias, difusas, extensas en los segmentos cervical, y dorsal de la médula (ver Figuras 1 y 2).\n \n ", "start_offset": 375 }, { "end_offset": 1789, "label": "TREATMENT", "segment": "Se inició metilprednisolona 1 g al día durante 3 días y ganciclovir iv 300 mg al día. 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Producto del segundo embarazo de una pareja sin antecedentes aparentes de consanguineidad, se caracteriza por presentar intolerancia al calor y ausencia de la sudoración desde el nacimiento. No refierían antecedentes heredofamiliares de importancia. En la exploración física destacaba la frenteprominente, hipoplasia del puente nasal, dos incisivos únicos en forma de cono, pigmentación periorbitaria, pelo escaso, fino, disperso y frágil así como cejas y pestañas. El paciente presentaba una dermatosis diseminada a cabeza, tronco y principalmente en extremidades superiores e inferiores, constituida por pápulas puntiformes eritematosas, con eritema difuso en una piel xerótica.\n \n La biopsia de piel de la palma de la mano izquierda demostró la ausencia parcial de las glándulas sudoríparas y sebáceas. Después de obtener el consentimiento informado, obtuvimos sangre periférica para realizar el estudio de cariotipo reportándose normal y a la vez, obtuvimos sangre no coagulada en tubos de EDTA (ácido etilendiaminotetraacético) de todos los miembros de la familia siguiendo los Principios de la Declaración de Helsinki. Se extrajo ADN de las muestras sanguíneas utilizando el equipo PUREGENER (Systema Gentra). Para el estudio de las mutaciones todos los exones así como las secuencias de los uniones de los intrones-exones fueron amplificados por medio de PCR (reacción en cadena de la polimerasa) del gen EDA-A1 en condiciones reportadas previamente. Las condiciones para la amplificación de cada PCR fueron de 94 °C por 2 minutos, seguido por 35 ciclos de 94°C durante 30 segundos, 55°C por 30 segundos y 72°C por 30 segundos con una extensión final a 72°C durante 7 minutos. Los productos de PCR fueron colocados en un gel de agarosa al 1% y posteriormente fueron analizados por la Secuenciadora Automática Directa ABI Prism 310, utilizando el equipo de Reacción \"ABI PRISM® BigDye™ Terminator Cycle Sequencing' (PE Biosystem) 8.\n Debido a que comúnmente la displasia ectodérmica hipohidrótica se encuentra ligada a X, se decidió obtener ADN genómico, logrando identificar la mutación sinsentido Ala349Thr en el gen EDA, se realiza la correlación clínico-patológica, concluyendo así con el diagnóstico de displasia ectodérmica hipohidrótica..\n", "section_annotation": { "gold": [ { "end_offset": 38, "label": "PRESENT_ILLNESS", "segment": "Paciente masculino de 2 años de edad, ", "start_offset": 0 }, { "end_offset": 72, "label": "PAST_MEDICAL_HISTORY", "segment": "originario de Tamaulipas, México, ", "start_offset": 38 }, { "end_offset": 143, "label": "PRESENT_ILLNESS", "segment": "evaluado por xerosis generalizada, así como fiebre de origen incierto. 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Las condiciones para la amplificación de cada PCR fueron de 94 °C por 2 minutos, seguido por 35 ciclos de 94°C durante 30 segundos, 55°C por 30 segundos y 72°C por 30 segundos con una extensión final a 72°C durante 7 minutos. Los productos de PCR fueron colocados en un gel de agarosa al 1% y posteriormente fueron analizados por la Secuenciadora Automática Directa ABI Prism 310, utilizando el equipo de Reacción \"ABI PRISM® BigDye™ Terminator Cycle Sequencing' (PE Biosystem) 8.\n Debido a que comúnmente la displasia ectodérmica hipohidrótica se encuentra ligada a X, se decidió obtener ADN genómico, logrando identificar la mutación sinsentido Ala349Thr en el gen EDA, se realiza la correlación clínico-patológica, concluyendo así con el diagnóstico de displasia ectodérmica hipohidrótica..\n", "start_offset": 393 } ] } }
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"S0034-98872012000200011-1", "note_text": "Paciente hombre de 23 años sin antecedentes mórbidos que presentó cefalea ictal y compromiso de conciencia cuantitativo progresivo. Consultó inicialmente en otro hospital donde se diagnosticó mediante tomografía computarizada (TC) de encéfalo un hematoma intraparenquimatoso parietal derecho de 42 ml, asociado a hidrocefalia aguda. En pabellón y de forma urgente, se instaló un drenaje ventricular externo (DVE). Se registróuna presión intracraneana (PIC) inicial de 45 cm de H2O. Se conectó a ventilación mecánica (VM) y se indicó sedación profunda. Inicialmente, la hipertensión intracraneana se trató con drenaje de líquido cefalorraquídeo y sodio hipertónico intravenoso en bolos, según necesidad. Se trasladó a nuestro servicio tres días más tarde.\n Ingresó intubado y conectado a VM, sedado con propofol 0,71 mg/kg/h, y hemodinamia apoyada con noradrenalina a 0,06 μg/kg/min, PIC de 6 cm de H2O y presión de perfusión cerebral (PPC) de 80 mmHg. En el examen neurológico se encontraba en coma, con midriasis fija a derecha, reflejos corneales abolidos, reflejos oculocefálicos esbozados, tono y reflejos osteotendíneos disminuidos, reflejos plantares indiferentes bilaterales.\n Exámenes generales de ingreso: Na+ 146 mEq/L, K+ 3,5 mEq/L, hematocrito 31%, lactato 1,4 mmol/L, leucocitos 9.600 por mm3 y proteína C reactiva 11,4 mg/dl.\n La angiografía cerebral de 6 vasos mostró una malformación arteriovenosa (MAV) parietal mesial derecha con signos de rotura reciente, asociada a tres aneurismas paranidales. Se realizó una embolización con N-butil-cianocrilato (Histoacryl®, Braun, Alemania), logrando reducir el nido de la MAV y excluir sus aneurismas. Después del procedimiento, la TC de encéfalo mostró el Histoacryl® correctamente situado. Sin embargo, se observó un incremento del hematoma con acentuado efecto de masa y presencia de edema cerebral difuso con obliteración de los surcos de la convexidad, además de herniaciones subfalcina y uncal con desviación de la línea media de 10 mm, a nivel de la glándula pineal. Se realizó la evacuación del hematoma y una craniectomía descompresiva frontoparietoccipital derecha extensa de 10,2 x 9,3 cm. La TC de encéfalo de control al día siguiente mostró una reducción del hematoma a 11 ml, pero aún se mantenía un importante efecto de masa, con desviación de la línea media de 5 mm.\n \n A pesar de la craniectomía evolucionó con PIC mayores a 20 cm H2O (23 ± 5 cm H2O; media ± DS). Se instauró un manejo médico escalonado de la HEC, con sedación profunda (fentanilo 2,86 μg/kg/h, midazolam 0,11 mg/kg/h y propofol 1,43 mg/kg/h), bloqueo neuromuscular (vecuronio 0,09 mg/kg/h), además del uso frecuente de bolos de sodio hipertónico frente a cifras de PIC > 30 cm H2O. Se descartó actividad epiléptica no convulsiva mediante un electroencefalograma y la TC de encéfalo 48 h post craniectomía no mostró cambios significativos. Debido a la persistencia de cifras de PIC > a 20 cm H2O, se decidió iniciar hipotermia terapéutica.\n Se empleó hipotermia moderada, con temperatura objetivo de 33°C, mediante técnica intravascular (Alsius, Zoll, Chelmsford, Massachusetts, EEUU). Se midió la temperatura central con catéter intravesical. Una vez conseguida la hipotermia (~12 h desde el diagnóstico de HEC refractaria), se logró un rápido control de la PIC con cifras entre 9 a 12 cm H2O (~3 desde el inicio del procedimiento). El bloqueo neuromuscular se mantuvo en infusión continua los primeros dos días de hipotermia, para evitar los calofríos.\n Luego de 48 h en hipotermia, se realizaron intentos programados de recalentamiento a una tasa de 0,5°C/h. Sin embargo, todos ellos fueron interrumpidos por rebote de la PIC. A partir del día 20 de evolución del cuadro clínico y coincidiendo con una disminución del edema cerebral en las neuroimágenes, se logró el control definitivo de la PIC. Completó ~13 días en hipotermia moderada, sin evidenciarse arritmias, trastornos de la coagulación o electrolíticos. Presentó una traqueobronquitis asociada a ventilación mecánica, resuelta satisfactoriamente con antibioticoterapia.\n Se suspendió progresivamente la sedación, el paciente adquirió vigilia y se objetivó una hemiparesia leve con heminegligencia y hemianopsia homónima izquierda. Una vez extubado se constató lenguaje apropiado. Se inició neurorrehabilitación y finalmente, luego de 40 días de hospitalización, fue dado de alta. 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Presentó cuadro de 3 días de evolución caracterizado por odinofagia, tos seca, dolor precordial y dorsal asociado a disnea de reposo. Consultó en centro de atención primaria donde se le solicita radiografía de tórax, destacando gran cardiomegalia y signos de congestión pulmonar. Se contaba con examen físico y radiografía de tórax de 3 años atrás sin ninguna alteración.\n \n Fue derivado a centro de atención terciaria al cuarto día de evolución del cuadro. Hemodinamia siempre estable. Se objetivó en electrocardiograma (ECG) taquicardia auricular intermitente, tratada inicialmente con amiodarona.\n \n Ingresó a nuestro servicio hipotenso (84/56 mmHg), taquicárdico (116 latidos por minuto, irregular), afebril, frecuencia respiratoria de 18 por minuto y saturando 92% con oxígeno ambiental, bien perfundido. La faringe se encontraba algo enrojecida, yugulares ingurgitadas. Sin congestión pulmonar y examen cardíaco demostró tercer ruido y ritmo de galope. Extremidades sin edema.\n De los exámenes de laboratorio destacaba discreta leucocitosis, PCR baja, enzimas cardíacas y troponinas normales.\n El ecocardiograma realizado en nuestra unidad mostró ventrículo izquierdo (VI) severamente dilatado (82/74 mm) con disfunción sistólica global severa [fracción de eyección (FE): 20%], hipokinesia difusa, disfunción diastólica tipo III de IV. AI de 49 mm, con disfunción sistólica ventricular derecha, leve dilatación de cavidades derechas e hipertensión pulmonar (HTP) moderada.\n \n Se realizó resonancia magnética cardiaca que concluyó miocardiopatía dilatada, sin elementos de fibrosis ni necrosis, con disfunción sistólica severa.\n Paciente se mantuvo taquicárdico, presión arterial en límite bajo, en tratamiento con inhibi dores de la enzima convertidora de angiotensina (IECA) y betabloqueo en dosis bajas.\n Dentro del estudio solicitado: función tiroidea normal; VHB (-), VHC (-), VIH (-), citomegalovirus (-), Chagas (-), IgM Mycoplasma pneumoniae (+) Se trato con azitromicina por 5 días.\n Se realizó biopsia endomiocárdica que concluyó cambios inespecíficos, compatibles con miocardiopatía dilatada, sin evidencias de enfermedad inflamatoria activa.\n El Holter de ECG evidenció taquicardia auricular incesante sobre 90% del tiempo. Se planteo el diagnostico de taquicardiomiopatía. El tratamiento con amiodarona, bisoprolol y digitálicos no fueron efectivas en el manejo de la taquiarritmia. Se decidió mapeo y ablación de taquicardia auricular incesante usando el sistema EnSite Navx™. Se identificó y realizó ablación a foco asociado a vena cava superior y vena pulmonar superior derecha, convirtiendo a ritmo sinusal con 85 latidos por minuto.\n Dado de alta a los 21 días de su admisión.\n En los controles posteriores se ha mantenido en capacidad funcional I, ritmo sinusal, con frecuencia cardíaca alrededor de 70 latidos por minuto, regular y normotenso. A los 3 meses posterior a la ablación, el ecocardiograma evidenció marcada reducción de las cámaras cardiacas con mejoría de la función sistólica del VI y mínimo reflujo mitral. A los 6 meses el paciente se encuentra en capacidad funcional I y el ecocardiograma en límite normal con radiografía de tórax normal.\n \n", "section_annotation": { "gold": [ { "end_offset": 26, "label": "PRESENT_ILLNESS", "segment": "Hombre de 20 años de edad ", "start_offset": 0 }, { "end_offset": 63, "label": "PAST_MEDICAL_HISTORY", "segment": "sin antecedentes mórbidos conocidos. ", "start_offset": 26 }, { "end_offset": 197, "label": "PRESENT_ILLNESS", "segment": "Presentó cuadro de 3 días de evolución caracterizado por odinofagia, tos seca, dolor precordial y dorsal asociado a disnea de reposo. ", "start_offset": 63 }, { "end_offset": 343, "label": "EXPLORATION", "segment": "Consultó en centro de atención primaria donde se le solicita radiografía de tórax, destacando gran cardiomegalia y signos de congestión pulmonar. 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AI de 49 mm, con disfunción sistólica ventricular derecha, leve dilatación de cavidades derechas e hipertensión pulmonar (HTP) moderada.\n \n Se realizó resonancia magnética cardiaca que concluyó miocardiopatía dilatada, sin elementos de fibrosis ni necrosis, con disfunción sistólica severa.\n ", "start_offset": 550 }, { "end_offset": 1876, "label": "EVOLUTION", "segment": "Paciente se mantuvo taquicárdico, presión arterial en límite bajo, en tratamiento con inhibi dores de la enzima convertidora de angiotensina (IECA) y betabloqueo en dosis bajas.\n ", "start_offset": 1697 }, { "end_offset": 2354, "label": "EXPLORATION", "segment": "Dentro del estudio solicitado: función tiroidea normal; VHB (-), VHC (-), VIH (-), citomegalovirus (-), Chagas (-), IgM Mycoplasma pneumoniae (+) Se trato con azitromicina por 5 días.\n Se realizó biopsia endomiocárdica que concluyó cambios inespecíficos, compatibles con miocardiopatía dilatada, sin evidencias de enfermedad inflamatoria activa.\n El Holter de ECG evidenció taquicardia auricular incesante sobre 90% del tiempo. Se planteo el diagnostico de taquicardiomiopatía. ", "start_offset": 1876 }, { "end_offset": 2720, "label": "TREATMENT", "segment": "El tratamiento con amiodarona, bisoprolol y digitálicos no fueron efectivas en el manejo de la taquiarritmia. Se decidió mapeo y ablación de taquicardia auricular incesante usando el sistema EnSite Navx™. Se identificó y realizó ablación a foco asociado a vena cava superior y vena pulmonar superior derecha, convirtiendo a ritmo sinusal con 85 latidos por minuto.\n ", "start_offset": 2354 }, { "end_offset": 3246, "label": "EVOLUTION", "segment": "Dado de alta a los 21 días de su admisión.\n En los controles posteriores se ha mantenido en capacidad funcional I, ritmo sinusal, con frecuencia cardíaca alrededor de 70 latidos por minuto, regular y normotenso. A los 3 meses posterior a la ablación, el ecocardiograma evidenció marcada reducción de las cámaras cardiacas con mejoría de la función sistólica del VI y mínimo reflujo mitral. A los 6 meses el paciente se encuentra en capacidad funcional I y el ecocardiograma en límite normal con radiografía de tórax normal.\n \n", "start_offset": 2720 } ] } }
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El hemograma y pruebas hepáticas resultaron normales, sin demostrarse la presencia de lesiones quísticas en la radiografía (Rx) de tórax ni en la ecotomografía abdominal. Se planteó el diagnóstico de hidatidosis cerebral y se realizó la exéresis completa e intacta del quiste, confirmando el estudio histopatológico la etiología hidatídica de la lesión.\n \n El paciente evolucionó favorablemente, asintomático, sin déficit neurológico ni complicaciones post operatorias.\n \n", "section_annotation": { "gold": [ { "end_offset": 35, "label": "PRESENT_ILLNESS", "segment": "Escolar de 12 años, sexo masculino ", "start_offset": 0 }, { "end_offset": 73, "label": "PAST_MEDICAL_HISTORY", "segment": "con residencia rural en la IX región. 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Eran hombres de edad media, 4/5 heterosexuales, todos VIH negativos. Presentaron un síndrome frontal subagudo; en 3 casos destacó la apatía, en los otros el ánimo subido. Todos tenían amnesias y 2 un síndrome de Korsakoff. En 3 existían signos piramidales discretos; en 2 retención de orina, en uno de ellos asociado a ataxia. Cuando se aplicaron las pruebas Minimental test de Folstein (MM), que mide la eficiencia cognitiva global, y Frontal Assessment Battery (FAB), que evalúa las funciones frontales, el mayor compromiso de esta confirmó el síndrome disejecutivo. En 3 existía laconismo con o sin afasia. Dos casos con episodios de isquemia cerebral tenían factores de riesgo vascular.\n \n El líquido cefaloraquídeo (LCR) fue siempre inflamatorio y con VDRL reactivo; en uno la serología en sangre fue negativa. El electroencefalograma (EEG) estuvo alterado en 3/3 casos; en cambio las imágenes estructurales no siempre fueron anormales. En el caso T una angiografía (indicada por un infarto cerebral en un hombre joven con VDRL no reactivo en sangre y antes del estudio de LCR) fue compatible con vasculitis. Todos recibieron altas dosis de penicilina sódica ev, pero la mejoría fue parcial y quedaron con secuelas cognitivas.\n W tenía 35 años, era supervisor de ventas, soltero; sin antecedentes de importancia salvo ser promiscuo; fumaba y bebía poco, no consumía drogas. En el 2° semestre de 2008 aparecieron tendencia a aislarse, olvidos, insomnio, pérdida de libido, disartria, cefaleas. Existía una mezcla de labilidad emocional y apatía. Perdió su trabajo en abril de 2009. En mayo un psiquiatra lo derivó a neurólogo, quien pidió una batería de exámenes, entre ellos VDRL en sangre que fue reactivo. El examen general era normal. Se mostraba alerta y colaboraba al examen; destacaban un síndrome frontal y una afasia no fluente mixta. Existían nistagmo en miradas extremas, paramimesis, enganche digital, tics de elevación de hombros. Una discreta ataxia de la marcha, arreflexia tendinosa de miembros inferiores y una retención de orina configuraban una tabes dorsal.\n El síndrome frontal se expresaba en apatía, abulia y conducta de imitación. Fue incapaz de comprender escenas complejas y de interpretar proverbios; perseveraba con frecuencia. Tenía defectos atencionales (cálculo, retención de cifras, inversión de series automáticas) y existía una afasia no fluente mixta. En MM obtuvo 9/30 puntos, en FAB 3/18 puntos; fue incapaz de abstraer. Rindió mejor en Matrices Progresivas Coloreadas (MPC, 25/36 puntos) y en la prueba de asociación semántica del 4° excluido (acertó en 7/8 ensayos). No existían agnosias visuales ni espaciales, apraxia constructiva, ideatoria, ideomotora ni del vestir. Tampoco tenía agnosia digital ni desorientación derecha-izquierda.\n El LCR mostró pleocitosis (130 mononuclea-res, 88% de linfocitos, 10% de polinucleares y 2% de monocitos), glucosa 21 mg/dL y proteínas 180 mg/dL. El VRDL fue reactivo 1/128. La resonancia magnética (RM) cerebral mostró atrofia de predominio frontotemporal izquierdo, y el EEG actividad irritativa y lenta en la misma zona. La serología para VIH fue negativa, y otros exámenes humorales fueron normales (función hepática, coagulación, hemograma y VHS, nivel de vitamina B12, Na, K y Cl, perfil bioquímico, proteína C reactiva, PCR para virus herpes simple en LCR).\n Se trató con penicilina sódica 4.000.000 ui ev c/4 horas durante 15 días, betametasona 4 mg ev c/8 horas por 3 días y fenitoina 100 mg c/8 horas. El tratamiento fue bien tolerado y parcialmente eficaz. A comienzos de 2010 el examen neurológico básico era normal, en MM obtuvo 28/30 puntos, en MPC 31/36, en FAB 13/18. Persistía un síndrome frontal, con actitud pueril, fallas de juicio y de coherencia del discurso. El LCR era normal, con serología reactiva a 1/32, lo que unido a la aparición de crisis convulsivas llevó a un segundo tratamiento con penicilina, de 21 días, y a indicar ácido valproico en vez de fenitoína. Fue jubilado por invalidez y vive con sus padres.\n", "section_annotation": { "gold": [ { "end_offset": 803, "label": "PRESENT_ILLNESS", "segment": "Los casos fueron recolectados en forma retrospectiva y se presentan en la Tabla1; sólo se detalla el último. Eran hombres de edad media, 4/5 heterosexuales, todos VIH negativos. Presentaron un síndrome frontal subagudo; en 3 casos destacó la apatía, en los otros el ánimo subido. Todos tenían amnesias y 2 un síndrome de Korsakoff. En 3 existían signos piramidales discretos; en 2 retención de orina, en uno de ellos asociado a ataxia. 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Reseñaba el antecedente de lesiones pustulosas aisladas en cara ocasionales y episodios de enrojecimiento facial con calor y alcohol.\n Clínicamente mostraba, eritema facial y lesiones pápulo-pustulosas localizadas en frente, mejillas, región perioral y tórax. Además presentaba ausencia de comedones y padecía afectación ocular con inyección conjuntival acompañado de fotofobia y lagrimeo. No presentaba fiebre ni otra clínica sistémica. La analítica con bioquímica general y hemograma resultaron normales.\n Con el juicio clínico de rosácea fulminans con afectación ocular inició tratamiento oral con prednisona 40 mg/día, metronidazol 500 mg/12 horas, isotretinoína 50 mg/día (0,7 mg/kg/día), y lágrimas artificiales. El metronidazol y la prednisona se suspendieron tras un mes de tratamiento (la última en pauta descendente). Por último, la isotretinoína oral se retiró tras tres meses de tratamiento realizando descenso progresivo de la dosis. El paciente evolucionó favorablemente con mejoría importante de las lesiones hasta la desaparición completa tras los tres meses de tratamiento. El paciente no ha presentado recaídas de la enfermedad en los posteriores seis meses.\n", "section_annotation": { "gold": [ { "end_offset": 21, "label": "PRESENT_ILLNESS", "segment": "Un varón de 29 años, ", "start_offset": 0 }, { "end_offset": 119, "label": "PAST_MEDICAL_HISTORY", "segment": "natural de Brasil, con antecedentes personales de dermatitis seborreica y lupus cutáneo subagudo, ", "start_offset": 21 }, { "end_offset": 281, "label": "DERIVED_FROM/TO", "segment": "fue remitido a nuestra consulta por el desarrollo de un cuadro cutáneo abrupto de una semana de evolución localizado en región centrofacial y torácica anterior.\n ", "start_offset": 119 }, { "end_offset": 430, "label": "PRESENT_ILLNESS", "segment": "El paciente se había aplicado un corticoide tópico (mometasona furoato al 0,1%) dos veces al día durante 1 mes para intentar controlar las lesiones. 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El metronidazol y la prednisona se suspendieron tras un mes de tratamiento (la última en pauta descendente). Por último, la isotretinoína oral se retiró tras tres meses de tratamiento realizando descenso progresivo de la dosis. ", "start_offset": 938 }, { "end_offset": 1607, "label": "EVOLUTION", "segment": "El paciente evolucionó favorablemente con mejoría importante de las lesiones hasta la desaparición completa tras los tres meses de tratamiento. El paciente no ha presentado recaídas de la enfermedad en los posteriores seis meses.\n", "start_offset": 1377 } ] } }
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"start_offset": 4275 }, { "boundary": null, "end_offset": 4279, "span": "de", "start_offset": 4277 }, { "boundary": null, "end_offset": 4288, "span": "lesiones", "start_offset": 4280 }, { "boundary": null, "end_offset": 4297, "span": "cutáneas", "start_offset": 4289 }, { "boundary": null, "end_offset": 4300, "span": "en", "start_offset": 4298 }, { "boundary": null, "end_offset": 4306, "span": "pocos", "start_offset": 4301 }, { "boundary": null, "end_offset": 4312, "span": "días.", "start_offset": 4307 }, { "boundary": null, "end_offset": 4313, "span": "\n", "start_offset": 4312 } ] }, "note_id": "S0034-98872012000700013-1", "note_text": "Paciente de sexo masculino, 38 años de edad, con antecedentes de alcoholismo y policonsumo de drogas, trastorno del ánimo y hepatitis B diagnosticada en 2005.\n Consultó a Infectología en febrero de 2011 por tumores eritemato-violáceos dolorosos, de crecimiento progresivo de 6 meses de evolución, asociados a compromiso del estado general y baja de peso de 10 kg de dos meses de evolución, con episodios de fiebre, sudoración nocturna, disfagia y diarrea. Por el cuadro clínico se sospechó inicialmente sarcoma de Kaposi (SK) y se solicitó ELISA para VIH que fue positivo y confirmado por el Instituto de Salud Pública de Chile.\n Dada la extensión de las lesiones cutáneas y la presencia de fiebre se hospitalizó para mayor estudio. Al examen físico de ingreso el paciente estaba en regulares condiciones generales, hipotenso, febril, enflaquecido (índice de masa corporal de 17), con adenopatías inguinales induradas, indoloras y poco móviles. Presentaba tumores eritemato-violáceos de hasta 5 cm de diámetro a nivel supraciliar derecho, en mentón y en pierna izquierda. En cara, paladar, tronco y extremidades presentaba múltiples pápulas erite-matosas brillantes y nódulos dolorosos subcutáneos sin cambios de coloración. No se pesquisó visceromegalia. De los exámenes generales destacaba: hematocrito 28,3%; leucocitos 6.200 céls/mm3, sin desviación izquierda; VHS 100 mm/h; PCR 9,1(VN < 1); función renal normal; pruebas hepáticas normales, excepto por fosfatasa alcalina elevada (211 U/L); albúmina 3 g/dl; LDH 159 U/L. Del estudio de su patología de base tenía carga viral para VIH de 875.000 copias ARN viral/ml y recuento de linfocitos CD4 de 87,6 céls/ mm3. Los hemocultivos, urocultivos, RPR, PPD y serología IgG para toxoplasma fueron negativos.\n \n Al reevaluar el cuadro clínico se planteó el diagnóstico de AB. Al preguntar dirigidamente el paciente refirió tres viajes al extranjero: Bolivia hace 5 años, Perú y México hace 3 años. Además vivió hace dos años en una casa con gatos, que lo rasguñaban ocasionalmente. Se solicitó serología de Bartonella henselae que resultó negativa. La nasofibroscopia informó lesiones angiomatosas en fosas nasales, rinofaringe y laringe. La endoscopia digestiva alta no detectó lesiones. La tomografía axial computarizada mostró hígado normal, leve esplenomegalia, adenopatías inguinales izquierdas de aspecto secundario y un nódulo en la musculatura paravertebral lumbar. La ecografía Doppler de extremidades superiores e inferiores mostró nódulos hipervascularizados inespecíficos en dermis, tejido subcutáneo y plano muscular.\n La biopsia de lesiones cutáneas mostró orto-queratosis, hipogranulosis, atrofia epidérmica, exocitosis de linfocitos e hiperpigmentación basal; dermis reticular con proliferación vascular, nodular, multifocal, compuesta por vasos capilares pequeños, endotelio prominente, con extravasación de eritrocitos e infiltrado leve disperso de linfocitos, neutrófilos y eritrocitos. Además, había acúmulos eosinófilos, extracelulares, granulares, multifocales. La tinción de Warthin-Starry mostró numerosos bacilos, siendo los hallazgos compatibles con AB.\n \n Se envió una muestra de tejido al laboratorio de microbiología de la Universidad Católica para realizar PCR universal con amplificación y secuenciación posterior del gen que codifica para la subu-nidad ribosomal 16S. La extracción del ADN del tejido subcutáneo se realizó utilizando un método comercial (QIAamp Tissue kit, Qiagen®), según las recomendaciones del fabricante. La amplificación del gen que codifica para el 16S ARNr se realizó con partidores universales. Posteriormente, se secuenció el producto amplificado y se evaluó en el analizador genético ABI-310 (Applied-Biosystems, Foster City, CA). Para la comparación de la secuencia nucleotídica obtenida con las secuencias depositadas en banco de genes Genebank, se utilizó al programa BLAST. Se encontró una homología de 100% sobre 421 pares de bases depositadas con la especie B. quintana cepa Toulouse.\n Se inició tratamiento antiretroviral para el VIH y profilaxis para Pneumocystis jiroveci. Se inició tratamiento de la AB con Azitromicina 500 mg/ día vo y Ciprofloxacino 500 mg c/12 h vo. 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Dos meses antes de consultar inició cuadro caracterizado por dolor abdominal difuso, asociado a vómitos de predominio vespertino, postprandiales mediatos y baja de 15 kilos de peso en este período. La endoscopía digestiva alta mostró la presencia de pliegues gástricos prominentes en forma difusa, lesiones solevantadas sésiles con ulceración central de fondo rojo y lesiones ulceradas duodenales, con test de ureasa positivo. Se realizaron biopsias informadas como gastritis crónica inespecífica y duodenitis. El estudio de laboratorio mostró: GOT 50 UI/L, GPT 56 UI/L, GGT 85 UI/L, FA 81 UI/L, hematocrito 55%, tiempo de protrombina 100%, creatininemia 1,2 g/dL, calcio total 7,8 mg/ dL, proteinemia 4,4 g/dL, albuminemia 2,3 g/dL y LDH 229 UI/ml. En la ecotomografía abdominal se informó esteatosis hepática.\n Se indicó tratamiento de erradicación para Helicobacter pylori durante 14 días, observándose la persistencia de los vómitos, con intolerancia a alimentación oral, por lo que se decidió hospitalizar para manejo nutricional y realización de macrobiopsias gástricas.\n A su ingreso al servicio de Gastroenterología de nuestro Hospital destacaba paciente con hemodinamia estable, afebril, mesomorfo, sin edema, ni palidez. Sin signos carenciales en piel, mucosas ni fanéreos. Los exámenes de laboratorio confirmaron proteínas totales 3,5 g/dL, albuminemia 1,9 g/dL, proteinuria negativa y hemograma sin alteraciones.\n Evolución y exámenes de laboratorio posteriores\n Se efectúa tomografía axial computada (TAC) de abdomen-pelvis que muestra pliegues gástricos prominentes, enteroclisis por TAC informó ausencia de lesiones radiológicas en intestino delgado.\n Se realizó endoscopía digestiva alta que mostró pliegues gástricos difusamente engrosados, algunos erosionados, test de ureasa negativo. Las biopsias fueron informadas como mucosa gástrica con hiperplasia foveolar difusa, asociada a atrofia glandular con dilataciones quísticas y células mucinosas. Erosión epitelial superficial focal con acúmulos de leucocitos polimorfonucleares, lámina propia con infiltrado inflamatorio escaso de predominio linfoplasmocitario, con algunos eosinófilos.\n \n Se complementó estudio con endosonografía demostrándose engrosamiento gástrico a expensas de la mucosa profunda y áreas quísticas.\n \n Ante la extensión de la lesión, el riesgo de transformación neoplásica y la no disponibilidad de cetuximab, se decidió tratamiento quirúrgico. Se solicitó evaluación por el equipo de nutrición, demostrándose preal-búmina, niveles de vitamina B12 y folato eritrocitario dentro de rangos normales. Se controlaron los vómitos con ondasentron, logrando ingesta oral adecuada, se apoyó con nutrición parenteral por 7 días con lo cual aumentó la albuminemia a 2,3 gr/dl. A los 14 días de su ingreso se realizó una gastrectomía total, sin incidentes y el paciente evolucionó en forma favorable.\n En el análisis macroscópico de la pieza operatoria se observó pared gástrica de espesor engrosado homogéneamente, mucosa con pliegues difusamente engrosados, congestivos, algunos con erosión superficial; rodete duodenal de 1,5 centímetros de diámetro, con lesión polipoide de 1 centímetro de eje mayor. En la histología se confirmaron los hallazgos descritos en las biopsias endoscópicas, con compromiso gástrico difuso, y en el duodeno en zona descrita de lesión polipoide se observó metaplasia fúndica focal con hiperplasia foveolar y atrofia glandular, con dilatación quística y células mucinosas. Se concluyó enfermedad de Ménétrier gástrica difusa con compromiso duodenal focal.\n \n", "section_annotation": { "gold": [ { "end_offset": 37, "label": "PRESENT_ILLNESS", "segment": "Paciente sexo masculino, de 55 años, ", "start_offset": 0 }, { "end_offset": 130, "label": "PAST_MEDICAL_HISTORY", "segment": "con antecedentes de tabaquismo crónico detenido y flegmón apendicular operado a los 40 años. ", "start_offset": 37 }, { "end_offset": 328, "label": "PRESENT_ILLNESS", "segment": "Dos meses antes de consultar inició cuadro caracterizado por dolor abdominal difuso, asociado a vómitos de predominio vespertino, postprandiales mediatos y baja de 15 kilos de peso en este período. ", "start_offset": 130 }, { "end_offset": 943, "label": "EXPLORATION", "segment": "La endoscopía digestiva alta mostró la presencia de pliegues gástricos prominentes en forma difusa, lesiones solevantadas sésiles con ulceración central de fondo rojo y lesiones ulceradas duodenales, con test de ureasa positivo. Se realizaron biopsias informadas como gastritis crónica inespecífica y duodenitis. El estudio de laboratorio mostró: GOT 50 UI/L, GPT 56 UI/L, GGT 85 UI/L, FA 81 UI/L, hematocrito 55%, tiempo de protrombina 100%, creatininemia 1,2 g/dL, calcio total 7,8 mg/ dL, proteinemia 4,4 g/dL, albuminemia 2,3 g/dL y LDH 229 UI/ml. 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Los exámenes de laboratorio confirmaron proteínas totales 3,5 g/dL, albuminemia 1,9 g/dL, proteinuria negativa y hemograma sin alteraciones.\n Evolución y exámenes de laboratorio posteriores\n Se efectúa tomografía axial computada (TAC) de abdomen-pelvis que muestra pliegues gástricos prominentes, enteroclisis por TAC informó ausencia de lesiones radiológicas en intestino delgado.\n Se realizó endoscopía digestiva alta que mostró pliegues gástricos difusamente engrosados, algunos erosionados, test de ureasa negativo. Las biopsias fueron informadas como mucosa gástrica con hiperplasia foveolar difusa, asociada a atrofia glandular con dilataciones quísticas y células mucinosas. Erosión epitelial superficial focal con acúmulos de leucocitos polimorfonucleares, lámina propia con infiltrado inflamatorio escaso de predominio linfoplasmocitario, con algunos eosinófilos.\n \n Se complementó estudio con endosonografía demostrándose engrosamiento gástrico a expensas de la mucosa profunda y áreas quísticas.\n \n ", "start_offset": 1208 }, { "end_offset": 2567, "label": "TREATMENT", "segment": "Ante la extensión de la lesión, el riesgo de transformación neoplásica y la no disponibilidad de cetuximab, se decidió tratamiento quirúrgico. ", "start_offset": 2424 }, { "end_offset": 2720, "label": "EVOLUTION", "segment": "Se solicitó evaluación por el equipo de nutrición, demostrándose preal-búmina, niveles de vitamina B12 y folato eritrocitario dentro de rangos normales. ", "start_offset": 2567 }, { "end_offset": 2967, "label": "TREATMENT", "segment": "Se controlaron los vómitos con ondasentron, logrando ingesta oral adecuada, se apoyó con nutrición parenteral por 7 días con lo cual aumentó la albuminemia a 2,3 gr/dl. A los 14 días de su ingreso se realizó una gastrectomía total, sin incidentes ", "start_offset": 2720 }, { "end_offset": 3013, "label": "EVOLUTION", "segment": "y el paciente evolucionó en forma favorable.\n ", "start_offset": 2967 }, { "end_offset": 3699, "label": "EXPLORATION", "segment": "En el análisis macroscópico de la pieza operatoria se observó pared gástrica de espesor engrosado homogéneamente, mucosa con pliegues difusamente engrosados, congestivos, algunos con erosión superficial; rodete duodenal de 1,5 centímetros de diámetro, con lesión polipoide de 1 centímetro de eje mayor. En la histología se confirmaron los hallazgos descritos en las biopsias endoscópicas, con compromiso gástrico difuso, y en el duodeno en zona descrita de lesión polipoide se observó metaplasia fúndica focal con hiperplasia foveolar y atrofia glandular, con dilatación quística y células mucinosas. Se concluyó enfermedad de Ménétrier gástrica difusa con compromiso duodenal focal.\n \n", "start_offset": 3013 } ] } }
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corderos. Tenía antecedentes de hipertensión arterial, dislipidemia y un quiste hidatídico pulmonar operado en 1996. Quince años después, presentó un accidente vascular encefálico, sin referir otro tipo de sintomatología cardiovascular. Dentro del estudio etiológico se realizó un ecocardiograma y una tomografía computarizada de tórax (TAC) donde se evidenció una masa quística de 4 x 3 cm en el ventrículo izquierdo, sin signos de ruptura. Se realizó además una ecotomografía abdominal que descartó la presencia de quistes hepáticos. Tampoco tenía antecedentes o síntomas previos sugerentes de anafilaxia.\n Posteriormente, evolucionó con dolor precordial opresivo sin irradiación, de intensidad EVA 6/10. Evaluado por cardiología en su hospital base se indicó anticoagulación oral siendo derivado al Instituto Nacional del Tórax con la sospecha de hidatidosis cardiaca.\n El paciente ingresó en buenas condiciones generales, afebril y sin alteraciones hemodinámicas, con presión arterial de 130/85 mmHg y 90 latidos por min. Al examen físico no presentaba ingurgitación yugular, roces ni soplos cardiacos (que fueron exhaustivamente buscados) ni tampoco signos de insuficiencia cardiaca. El examen pulmonar fue normal.\n El hemograma reveló una eosinofilia de 21%, sin leucocitosis. El perfil bioquímico fue normal. La determinación de anticuerpos IgG anti-Echinococcus granulosus no fue realizada.\n La radiografía de tórax era normal y el electrocardiograma presentaba ritmo sinusal, ondas T negativas en DII y alteraciones inespecíficas en la repolarización.\n La ecocardiografía realizada en nuestro servicio evidenció una imagen poliquística, ovalada y adherida al macizo de músculos papilares anterolaterales, de contornos bien delimitados en pared libre del ventrículo izquierdo que medía 4,5 x 3,2 x 2,7 cm, sin derrame pericárdico. Estos hallazgos fueron confirmados por resonancia magnética (RNM). El estudio preoperatorio fue completado con una coronariografía, que fue normal.\n \n La cirugía se realizó bajo esternotomía media y circulación extracorpórea, poniendo principal atención en la manipulación cardiaca para no lesionar el quiste. Una vez puesto el clamp aórtico, se disecó la superficie del quiste, se aisló el campo con compresas embebidas en cloruro de sodio al 10% y se puncionó el quiste vaciándolo parcialmente e inyectando solución salina hipertónica al 30%. Posteriormente, se abrió el quiste hacia la cara anterior del ventrículo izquierdo y se vació, retirando las membranas y vesículas hijas. Se completó el aseo de la cavidad con sodio hipertónico y posteriormente se realizó quistectomía parcial y cierre por capitonaje del remanente. El paciente no presentó complicaciones intraoperatorias y la evolución posterior fue favorable. En control ambulatorio post-quirúrgico, el paciente se ha mantenido asintomático, sin evidencias de complicaciones o recidivas y se controlará semestralmente con ecocardiografía y serología para E. granulosus.\n \n", "section_annotation": { "gold": [ { "end_offset": 18, "label": "PRESENT_ILLNESS", "segment": "Varón de 48 años, ", "start_offset": 0 }, { "end_offset": 352, "label": "PAST_MEDICAL_HISTORY", "segment": "oriundo de Marchigüe, VI Región de Chile, quien durante su vida laboral trabajó como faenador de corderos. Tenía antecedentes de hipertensión arterial, dislipidemia y un quiste hidatídico pulmonar operado en 1996. Quince años después, presentó un accidente vascular encefálico, sin referir otro tipo de sintomatología cardiovascular. ", "start_offset": 18 }, { "end_offset": 651, "label": "EXPLORATION", "segment": "Dentro del estudio etiológico se realizó un ecocardiograma y una tomografía computarizada de tórax (TAC) donde se evidenció una masa quística de 4 x 3 cm en el ventrículo izquierdo, sin signos de ruptura. Se realizó además una ecotomografía abdominal que descartó la presencia de quistes hepáticos. ", "start_offset": 352 }, { "end_offset": 724, "label": "PAST_MEDICAL_HISTORY", "segment": "Tampoco tenía antecedentes o síntomas previos sugerentes de anafilaxia.\n ", "start_offset": 651 }, { "end_offset": 822, "label": "EVOLUTION", "segment": "Posteriormente, evolucionó con dolor precordial opresivo sin irradiación, de intensidad EVA 6/10. ", "start_offset": 724 }, { "end_offset": 898, "label": "TREATMENT", "segment": "Evaluado por cardiología en su hospital base se indicó anticoagulación oral ", "start_offset": 822 }, { "end_offset": 988, "label": "DERIVED_FROM/TO", "segment": "siendo derivado al Instituto Nacional del Tórax con la sospecha de hidatidosis cardiaca.\n ", "start_offset": 898 }, { "end_offset": 2105, "label": "EXPLORATION", "segment": "El paciente ingresó en buenas condiciones generales, afebril y sin alteraciones hemodinámicas, con presión arterial de 130/85 mmHg y 90 latidos por min. Al examen físico no presentaba ingurgitación yugular, roces ni soplos cardiacos (que fueron exhaustivamente buscados) ni tampoco signos de insuficiencia cardiaca. El examen pulmonar fue normal.\n El hemograma reveló una eosinofilia de 21%, sin leucocitosis. El perfil bioquímico fue normal. La determinación de anticuerpos IgG anti-Echinococcus granulosus no fue realizada.\n La radiografía de tórax era normal y el electrocardiograma presentaba ritmo sinusal, ondas T negativas en DII y alteraciones inespecíficas en la repolarización.\n La ecocardiografía realizada en nuestro servicio evidenció una imagen poliquística, ovalada y adherida al macizo de músculos papilares anterolaterales, de contornos bien delimitados en pared libre del ventrículo izquierdo que medía 4,5 x 3,2 x 2,7 cm, sin derrame pericárdico. Estos hallazgos fueron confirmados por resonancia magnética (RNM). El estudio preoperatorio fue completado con una coronariografía, que fue normal.\n \n ", "start_offset": 988 }, { "end_offset": 2781, "label": "TREATMENT", "segment": "La cirugía se realizó bajo esternotomía media y circulación extracorpórea, poniendo principal atención en la manipulación cardiaca para no lesionar el quiste. Una vez puesto el clamp aórtico, se disecó la superficie del quiste, se aisló el campo con compresas embebidas en cloruro de sodio al 10% y se puncionó el quiste vaciándolo parcialmente e inyectando solución salina hipertónica al 30%. Posteriormente, se abrió el quiste hacia la cara anterior del ventrículo izquierdo y se vació, retirando las membranas y vesículas hijas. Se completó el aseo de la cavidad con sodio hipertónico y posteriormente se realizó quistectomía parcial y cierre por capitonaje del remanente. ", "start_offset": 2105 }, { "end_offset": 3004, "label": "EVOLUTION", "segment": "El paciente no presentó complicaciones intraoperatorias y la evolución posterior fue favorable. 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Como parte de su estudio se realizó una endoscopia digestiva alta que no mostró hallazgos patológicos y una colonoscopia completa que demostró la presencia de múltiples pólipos sésiles (más de 100) y pediculados (más de 15), desde el margen anal hasta el ciego. A nivel cecal se evidenció una lesión proliferativa de aproximadamente 2,5 cm de diámetro mayor, cuya biopsia confirmó un adenocarcinoma tubular moderadamente diferenciado. El diagnóstico preliminar fue de una PAF asociada a un adenocarcinoma cecal. El estudio de etapificación con TAC (tomografía abdominal computarizada) de abdomen y pelvis no mostró signos de diseminación tumoral, realizándose una colectomía total con íleorrectoanastomosis. El estudio anatomopatológico de la pieza quirúrgica mostró una lesión tumoral de 3 cm de diámetro con invasión hasta la subserosa y compromiso linfonodal. La mucosa del resto de la pieza resecada presentaba un centenar de pólipos sésiles y pediculados, abollonados y lisos de 0,2 a 2 cm de diámetro mayor. Por tratarse de una paciente en etapa III se realizó un tratamiento con quimioterapia adyuvante en base a 5-fluorouracilo y leucovorina. Hasta la fecha la paciente ha completado 70 meses de seguimiento sin evidencia de enfermedad.\n Debido a su historia clínica (poliposis colónica y CCR a edad temprana), la paciente fue derivada al registro de tumores hereditarios para definir el estudio genético apropiado. Este registro incorpora a pacientes con sospecha de enfermedades hereditarias (poliposis adenomatosa familiar, síndrome de Lynch, síndrome de Peutz-Jeghers, entre otros) con la finalidad de educar a los pacientes y familiares respecto a su enfermedad, predisposición de desarrollarla y transmitirla a su descendencia, y de este modo prevenir el desarrollo del CCR en aquellos familiares asintomáticos.\n El análisis de la genealogía de la paciente índice demostró consanguinidad de los padres, sin historia de poliposis o CCR en ellos. Además permitió identificar a una hermana (de un total de 12 hermanos) que presentó CCR, a la que identificamos como PAF585. Ella presentó un cáncer de colon derecho con invasión hasta la subserosa y compromiso linfonodal a los 53 años que fue tratado con cirugía y quimioterapia adyuvante. Un año después, la colonoscopia de control mostró dos nuevos tumores sincrónicos, uno en colon sigmoides a 35 cm del margen anal y otro cáncer en recto inferior (adenocarcinoma tubular invasor). Cabe destacar que el informe médico de la paciente no registra la presencia de poliposis adenomatosa colónica. La paciente evolucionó tórpidamente falleciendo a los 4 meses posterior a la cirugía debido a un cuadro séptico secundario.\n \n Con respecto a los demás hermanos, cinco de ellos fallecieron en la infancia por accidentes y enfermedades no relacionadas al cáncer. En los cinco hermanos vivos, la paciente índice no declara más casos afectados de poliposis o CCR, sin embargo, desconocemos si ellos se han realizado estudios colonoscópicos.\n Estudio genético\n Obtención del ADN genómico desde sangre periférica: el ADN genómico fue aislado a partir de 10 ml de sangre venosa periférica, utilizando el protocolo descrito por Lahiri y Nurnberger (1991 )9.\n Este ADN fue previamente estudiado en el análisis molecular del gen APC, el cual resultó negativo8.\n Análisis mutacional del gen MUTYH: Los 16 exones del gen MUTYH fueron amplificados mediante la técnica de PCR (reacción en cadena de la polimerasa) usando los partidores descritos por Kim y colaboradores, en 200610. Reacciones de PCR fueron realizadas en un volumen total de 50 Ql que contiene 100 ng de ADN genómico, 25 pmoles de cada partidor, 0,2 mM de cada uno de los dNTPs, 1,5 mM MgCl2 1X del amortiguador suministrado por la enzima y 1U de la enzima Platinum Taq ADN polimerasa (Invitrogen, Sao Paulo, Brasil). La amplificación fue realizada con el siguiente protocolo: una desnaturación inicial de 1 min a 95°C, seguido por 30 ciclos de 30 seg a 95°C, 30 seg a una temperatura de apareamiento de los partidores (rango 50-58°C), 30 seg a 72°C, y un paso de extensión final de 10 min a 72°C. Los productos amplificados fueron posteriormente analizados mediante dos técnicas de alta sensibilidad para la detección de alteraciones en la secuencia del ADN, que incluye la técnica de SSCP (single strand conformation polymorphism) y secuenciación de ADN. Brevemente, los productos de PCR fueron desnaturados a 95°C por 5 min, enfriados en hielo por 5 min, y resueltos por electroforesis en geles de poliacrilamida MDE 0,5X\n (FMC Bioproducts), aplicando una corriente de 3 W a 18°C por 12 h. Después de la electroforesis, los geles fueron teñidos con nitrato de plata con el fin de visualizar las bandas de ADN. Los productos de PCR que presentaron una migración anormal en relación al control, fueron secuenciados. Las mutaciones fueron analizadas y confirmadas por dos reacciones de PCR independientes y por secuenciación de las dos hebras de ADN. La mutación se nombró de acuerdo a la nomenclatura propuesta por la Human Genome Variation Society (www. hgvs.org/mutnomen/).\n", "section_annotation": { "gold": [ { "end_offset": 99, "label": "PRESENT_ILLNESS", "segment": "La paciente índice (PAF19) de sexo femenino consultó a los 41 años (2004) por un síndrome anémico. 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"Paciente varón de 62 años de edad con antecedente de tabaquismo (20 paquetes/año) que consultó por disfagia y baja de peso. Endoscopia digestiva alta (EDA) demostró un tumor estenosante del esófago a 30 cm de la arcada dentaria. Biopsia confirmó un carcinoma escamoso moderadamente diferenciado. El estudio de etapi-ficación con tomografía axial computada (TAC) mostró una lesión infiltrante en tercio medio del esófago de 9 cm de largo, desde el cayado aórtico hasta el nivel de las venas pulmonares derechas; en su aspecto posterior se apreciaba que rodeaba y aparentemente infiltraba la aorta en más de un 50% de su circunferencia. Presentaba además un nódulo pulmonar de 1 x 0,5 cm en el lóbulo superior derecho y un nódulo hepático de 3 cm en el lóbulo caudado, compatibles con localizaciones secundarias (T4NxM1). Considerando que el paciente tenía un cáncer metastásico, recibió tratamiento paliativo para alivio de su disfagia con QRT concomitante con cisplatino (radioterapia 51 Gy en 17 fracciones de 3 Gy y cisplatino 40 mg/ m2 semanales).\n \n Dos meses después de completado el tratamiento consultó en el Servicio de Urgencia por presentar hematemesis; al ingreso hipotenso y taquicárdico recuperando su hemodinamia mediante aporte de cristaloides. Hematocrito de 21%. AngioTAC mostró reducción de la masa tumoral esofágica con componente necrótico central e infiltración de la pared anterior de la aorta, sin evidencias de sangrado activo; los hallazgos eran sugerentes de una FAE. Fue llevado a pabellón donde se implantó una endoprótesis Valiant 28 x 15 (Medtronic, Minnesota, Estados Unidos de Norteamérica) en aorta torácica descendente proximal, distal a la arteria subclavia izquierda, por vía femoral sin incidentes.\n Se inició cobertura antibiótica en base a ce-ftriaxona y clindamicina. No volvió a presentar hemorragia digestiva, iniciando alimentación oral progresiva el 4° día postoperatorio, bien tolerado y sin evidencias de disfagia. Fue dado de alta al 8° día con buena tolerancia oral y afebril. Completó 14 días de antibióticos endovenosos y luego continuó con amoxicilina/ácido clavulánico oral y posteriormente amoxicilina en forma indefinida.\n En controles ambulatorios evolucionó adecuadamente, sin disfagia ni fiebre y con aumento progresivo del peso de 6 kg. AngioTAC de control a los 3 meses mostró adecuada posición de la endoprótesis sin evidencias de fugas, pero con progresión de la metástasis hepática conocida. Continuó con cuidados paliativos y evolucionó sin complicaciones importantes hasta un control a los 11 meses post procedimiento en que refirió compromiso del estado general, disfagia a sólidos y baja de peso de 10 kilos. EDA demostró lesión esofágica estenosante desde los 30 a 35 cm de la arcada dentaria con exposición de la endoprótesis aórtica. Mantuvo manejo paliativo, falleciendo finalmente a los 13 meses post cirugía sin evidencias de sepsis ni nuevos episodios de sangrado.\n \n", "section_annotation": { "gold": [ { "end_offset": 34, "label": "PRESENT_ILLNESS", "segment": "Paciente varón de 62 años de edad ", "start_offset": 0 }, { "end_offset": 82, "label": "PAST_MEDICAL_HISTORY", "segment": "con antecedente de tabaquismo (20 paquetes/año) ", "start_offset": 34 }, { "end_offset": 124, "label": "PRESENT_ILLNESS", "segment": "que consultó por disfagia y baja de peso. ", "start_offset": 82 }, { "end_offset": 820, "label": "EXPLORATION", "segment": "Endoscopia digestiva alta (EDA) demostró un tumor estenosante del esófago a 30 cm de la arcada dentaria. Biopsia confirmó un carcinoma escamoso moderadamente diferenciado. 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El hemograma mostraba 3.400 leucocitos x mm3, 46% de linfo citos y 50% de neutro filos. La proteína C reactiva (PCR) y la velocidad de sedimentación (VHS) fueron de 6,2 mg/L y 28 mm/h, respectivamente. El perfil hepático, las pruebas de coagulación y la función renal no mostraron alteraciones. El estudio complementario fue negativo: hemocultivos, urocultivo, coprocultivo, inmunofluorescencia directa para virus respiratorios, serología para virus Epstein-Barr (VEB), Bartonella hensenlae, parvovirus B-19, citomegalovirus (CMV), Toxoplasma gondii y ELISA para VIH. No hubo hallazgos significativos en la tomografía axial computada (TAC) de tórax, abdomen y pelvis, y en la eco cardiografía transtorácica. La ecografía cervical mostró adenopatías bilaterales, tanto en los triángulos cervicales anteriores y posteriores, de aspecto inespecífico.\n Durante la hospitalización apareció un exantema máculo-papular en la región malar, tronco y extremidades asociado a artralgias. Los anticuerpos anti-nucleares (ANA) y anti-DNA fueron negativos y los anticuerpos anti-antígenos nucleares extraíbles (ENA) y el factor reumatoide (FR) no presentaron alteraciones. Los niveles de complemento C3 y C4 fueron de 131 mg/dL y 45 mg/dL respectivamente. Se realizó biopsia de adenopatía cervical que reveló distorsión de la arquitectura, focos de necrosis fibrinoide y restos apoptóticos rodeados de abundantes histiocitos, compatible con linfadenitis necrotizante histiocitaria. 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null, "end_offset": 1981, "span": "alteraciones", "start_offset": 1969 }, { "boundary": null, "end_offset": 1996, "span": "significativas", "start_offset": 1982 }, { "boundary": null, "end_offset": 1999, "span": "en", "start_offset": 1997 }, { "boundary": null, "end_offset": 2003, "span": "las", "start_offset": 2000 }, { "boundary": null, "end_offset": 2011, "span": "pruebas", "start_offset": 2004 }, { "boundary": null, "end_offset": 2014, "span": "de", "start_offset": 2012 }, { "boundary": null, "end_offset": 2022, "span": "función", "start_offset": 2015 }, { "boundary": null, "end_offset": 2032, "span": "pulmonar.", "start_offset": 2023 }, { "boundary": null, "end_offset": 2033, "span": "\n", "start_offset": 2032 } ] }, "note_id": "S0034-98872013000500015-3", "note_text": "Mujer de 50 años con historia de poliartralgias y tabaquismo crónico activo. Refiere cuadro de 2 meses caracterizado por fiebre persistente, sudo-ración nocturna, baja de peso, poliartralgias en extremidades inferiores y aumento de volumen cervical derecho sensible. Relata antecedente de hermana con EKF y contacto directo con gato. Consultó en Servicio de Urgencias, donde le realizaron ecografía cervical que mostraba múltiples linfonodos cervicales a derecha. Le indicaron amoxicilina-ácido clavulánico durante 5 días sin mejoría clínica por lo que se hospitalizó. En el examen físico destacaba una adenopatía cervical derecha de 5 x 6 cm, sensible y sin visceromegalia. El hemograma mostró VHS de 56 mm/h y la PCR y ferritina fueron de 77 mg/L y 1.789 ng/mL respectivamente. El TAC de cuello, tórax, abdomen y pelvis, además de constatar adenopatías cervicales y mediastínicas, reveló opacidades pulmonares en vidrio esmerilado. Paralelamente, se descartó infección por VIH, VEB, CMV, virus hepatitis B y C, sífilis y Toxoplasma gondii. La IgM para Bartonella hensenlae fue negativa, mientras que la IgG resultó positiva (1/64). Se indicó azitromicina lg al día durante 6 días, sin respuesta. El estudio inmunológico fue prácticamente normal, solamente con un ANA positivo a título bajo (1/40). Se decidió realizar biopsia de la adenopatía cervical. Los estudios para hongos y bacterias resultaron negativos, mientras que el estudio histológico reveló linfadenitis necrotizante histiocitaria. Se inició prednisona 30 mg al día durante tres semanas con disminución progresiva de las dosis completando 45 días de terapia. Los síntomas desaparecen a las 48 h de tratamiento. Dos meses después asiste a control con TAC de tórax que informó aumento de imágenes en vidrio esmerilado. Se realizó biopsia pulmonar revelando hallazgos compatibles con neumonía intersticial usual en fase tardía. A los 6 meses de seguimiento no ha presentado sintoma-tología respiratoria ni alteraciones significativas en las pruebas de función pulmonar.\n", "section_annotation": { "gold": [ { "end_offset": 17, "label": "PRESENT_ILLNESS", "segment": "Mujer de 50 años ", "start_offset": 0 }, { "end_offset": 77, "label": "PAST_MEDICAL_HISTORY", "segment": "con historia de poliartralgias y tabaquismo crónico activo. ", "start_offset": 17 }, { "end_offset": 267, "label": "PRESENT_ILLNESS", "segment": "Refiere cuadro de 2 meses caracterizado por fiebre persistente, sudo-ración nocturna, baja de peso, poliartralgias en extremidades inferiores y aumento de volumen cervical derecho sensible. ", "start_offset": 77 }, { "end_offset": 334, "label": "PAST_MEDICAL_HISTORY", "segment": "Relata antecedente de hermana con EKF y contacto directo con gato. ", "start_offset": 267 }, { "end_offset": 464, "label": "PRESENT_ILLNESS", "segment": "Consultó en Servicio de Urgencias, donde le realizaron ecografía cervical que mostraba múltiples linfonodos cervicales a derecha. ", "start_offset": 334 }, { "end_offset": 569, "label": "TREATMENT", "segment": "Le indicaron amoxicilina-ácido clavulánico durante 5 días sin mejoría clínica por lo que se hospitalizó. ", "start_offset": 464 }, { "end_offset": 1498, "label": "EXPLORATION", "segment": "En el examen físico destacaba una adenopatía cervical derecha de 5 x 6 cm, sensible y sin visceromegalia. El hemograma mostró VHS de 56 mm/h y la PCR y ferritina fueron de 77 mg/L y 1.789 ng/mL respectivamente. El TAC de cuello, tórax, abdomen y pelvis, además de constatar adenopatías cervicales y mediastínicas, reveló opacidades pulmonares en vidrio esmerilado. Paralelamente, se descartó infección por VIH, VEB, CMV, virus hepatitis B y C, sífilis y Toxoplasma gondii. La IgM para Bartonella hensenlae fue negativa, mientras que la IgG resultó positiva (1/64). Se indicó azitromicina lg al día durante 6 días, sin respuesta. El estudio inmunológico fue prácticamente normal, solamente con un ANA positivo a título bajo (1/40). Se decidió realizar biopsia de la adenopatía cervical. Los estudios para hongos y bacterias resultaron negativos, mientras que el estudio histológico reveló linfadenitis necrotizante histiocitaria. ", "start_offset": 569 }, { "end_offset": 1625, "label": "TREATMENT", "segment": "Se inició prednisona 30 mg al día durante tres semanas con disminución progresiva de las dosis completando 45 días de terapia. ", "start_offset": 1498 }, { "end_offset": 1677, "label": "EVOLUTION", "segment": "Los síntomas desaparecen a las 48 h de tratamiento. ", "start_offset": 1625 }, { "end_offset": 1891, "label": "EXPLORATION", "segment": "Dos meses después asiste a control con TAC de tórax que informó aumento de imágenes en vidrio esmerilado. Se realizó biopsia pulmonar revelando hallazgos compatibles con neumonía intersticial usual en fase tardía. ", "start_offset": 1677 }, { "end_offset": 2033, "label": "EVOLUTION", "segment": "A los 6 meses de seguimiento no ha presentado sintoma-tología respiratoria ni alteraciones significativas en las pruebas de función pulmonar.\n", "start_offset": 1891 } ] } }
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"note_text": "Mujer de 30 años, que estudio de dolor abdominal con TAC mostró tumor ovárico derecho de 13 cm y ascitis. 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Consultó por un cuadro de 4 meses de evolución caracterizado por dolor abdominal, distensión abdominal, vómitos persistentes y baja de peso de 9 kilos durante ese período. No hubo evidencia de hemorragia gastrointestinal o anemia.\n La endoscopia digestiva alta reveló un tumor gástrico submucoso, localizado en antro en la curvatura menor y que ocupaba una importante parte del lumen antral. La mucosa, examinada por endoscopia, era de aspecto normal, por lo que no se tomaron biopsias.\n Se realizó una ecografía abdominal que evidenció una masa gástrica homogénea, hiperecogénica y de bordes definidos. El estudió se completó con una tomografía axial computada de abdomen que reveló una lesión con densidad grasa, de 11 x 6 cm, ocupando una parte importante del lumen antral gástrico, con baja captura de contraste. La lesión fue sospechosa de GIST con diferenciación lipomatosa o un lipoma gástrico. La resección quirúrgica fue recomendada.\n \n Se realizó una gastrectomía subtotal distal laparoscópica. Se utilizaron 5 trocares; supraumbilical de 12 mm para el laparoscopio, subxifoideo de 5 mm para separación hepática y trocares subcostal izquierdo de 12 mm, flanco derecho de 12 mm y flanco izquierdo de 10 mm. En el intraoperatorio, se confirmó una gran masa antral sin compromiso de la serosa. Se realizó endoscopia intraoperatoria para definir el margen proximal de resección. Se seccionó el duodeno y el estómago con cargas lineares de 60 mm y se realizó una linfadenectomía D1. La pieza fue extraída por una incisión Pfannenstiel y los márgenes negativos fueron confirmados por biopsia rápida. Se reconstruyó el tránsito con una Y de Roux de 50 cm de largo, realizando la anastomosis gastro-yeyunal y yeyuno-yeyunal en forma mecánica e intracorpórea. El tiempo operatorio fue de 5 h y el sangrado fue de 200 cc.\n La recuperación post operatoria fue sin incidentes. El paciente se realimentó con líquidos desde el tercer día y fue dado de alta al 5o día post operatorio.\n El estudio macroscópico de la lesión fue consistente con tumor gástrico submucoso, de 11,5 x 6x7 cm, con apariencia lipomatosa. La microscopía fue compatible con lipoma gástrico benigno con márgenes libres y 15 linfonodos perigástricos normales.\n \n", "section_annotation": { "gold": [ { "end_offset": 45, "label": "PRESENT_ILLNESS", "segment": "Paciente de sexo masculino, 62 años de edad, ", "start_offset": 0 }, { "end_offset": 147, "label": "PAST_MEDICAL_HISTORY", "segment": "con antecedentes de hipertensión arterial sin tratamiento, obesidad (IMC 32) y tabaquismo suspendido. ", "start_offset": 45 }, { "end_offset": 377, "label": "PRESENT_ILLNESS", "segment": "Consultó por un cuadro de 4 meses de evolución caracterizado por dolor abdominal, distensión abdominal, vómitos persistentes y baja de peso de 9 kilos durante ese período. No hubo evidencia de hemorragia gastrointestinal o anemia.", "start_offset": 147 }, { "end_offset": 1093, "label": "EXPLORATION", "segment": "\n La endoscopia digestiva alta reveló un tumor gástrico submucoso, localizado en antro en la curvatura menor y que ocupaba una importante parte del lumen antral. La mucosa, examinada por endoscopia, era de aspecto normal, por lo que no se tomaron biopsias.\n Se realizó una ecografía abdominal que evidenció una masa gástrica homogénea, hiperecogénica y de bordes definidos. El estudió se completó con una tomografía axial computada de abdomen que reveló una lesión con densidad grasa, de 11 x 6 cm, ocupando una parte importante del lumen antral gástrico, con baja captura de contraste. La lesión fue sospechosa de GIST con diferenciación lipomatosa o un lipoma gástrico. La resección quirúrgica fue recomendada.\n \n ", "start_offset": 377 }, { "end_offset": 1908, "label": "TREATMENT", "segment": "Se realizó una gastrectomía subtotal distal laparoscópica. Se utilizaron 5 trocares; supraumbilical de 12 mm para el laparoscopio, subxifoideo de 5 mm para separación hepática y trocares subcostal izquierdo de 12 mm, flanco derecho de 12 mm y flanco izquierdo de 10 mm. En el intraoperatorio, se confirmó una gran masa antral sin compromiso de la serosa. Se realizó endoscopia intraoperatoria para definir el margen proximal de resección. Se seccionó el duodeno y el estómago con cargas lineares de 60 mm y se realizó una linfadenectomía D1. La pieza fue extraída por una incisión Pfannenstiel y los márgenes negativos fueron confirmados por biopsia rápida. Se reconstruyó el tránsito con una Y de Roux de 50 cm de largo, realizando la anastomosis gastro-yeyunal y yeyuno-yeyunal en forma mecánica e intracorpórea. ", "start_offset": 1093 }, { "end_offset": 2128, "label": "EVOLUTION", "segment": "El tiempo operatorio fue de 5 h y el sangrado fue de 200 cc.\n La recuperación post operatoria fue sin incidentes. El paciente se realimentó con líquidos desde el tercer día y fue dado de alta al 5o día post operatorio.\n ", "start_offset": 1908 }, { "end_offset": 2376, "label": "EXPLORATION", "segment": "El estudio macroscópico de la lesión fue consistente con tumor gástrico submucoso, de 11,5 x 6x7 cm, con apariencia lipomatosa. La microscopía fue compatible con lipoma gástrico benigno con márgenes libres y 15 linfonodos perigástricos normales.\n \n", "start_offset": 2128 } ] } }
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Estando en reposo en su casa, una hora posterior a haber finalizado entrenamiento de boxeo, presentó compromiso súbito de conciencia de aproximadamente un minuto de duración, con recuperación completa posterior. En las dos horas siguientes repitió episodios sincopales de similares características en tres oportunidades. En el hall de acceso al hospital presentó nuevo cuadro sincopal, por lo que fue trasladado al box de urgencia para evaluación inmediata. Al ingreso se constató presión arterial de 126/82 mmHg, frecuencia cardiaca de 82 lpm, saturación de 99% y temperatura axilar de 36°C. El paciente no refería comorbilidades significativas ni antecedentes familiares de cardiopatía. Durante realización del ECG inicial paciente repitió síncope, objetivándose en el trazado fibrilación ventricular. Se iniciaron maniobras de reanimación y el paciente convirtió a ritmo sinusal después de unos segundos. Se repitió un ECG, que mostraba imagen de bloqueo incompleto de rama derecha, supradesnivel del ST e inversión de la onda T en precordiales derechas, sugerente de patrón Bragada tipo 1. A los pocos minutos se evidenció nuevo episodio de fibrilación ventricular y se procedió a la inmediata desfibrilación con 200 Joules de corriente bifásica, dando salida a ritmo sinusal. El paciente fue hospitalizado en Unidad Coronaria, donde fue sedado con lorazepam y se decidió iniciar infusión de isoproterenol a dosis de 0,25 ug/min. Se registra ECG durante infusión de isoproterenol, en el cual se apreció regresión del patrón de Brugada dado por normalización del segmento ST en V1-V2, desaparición de la imagen de bloqueo de rama derecha y restauración de la polaridad de la onda T. Ecocardiograma descartó patología estructural y exámenes de laboratorio no mostraron alteraciones significativas del medio interno. Evolucionó favorablemente, suspendiendo infusión antiarrítmica al segundo día e implantando cardiodesfibrilador bicameral (Protecta CRT-D, Medtronic) sin incidentes. Fue dado de alta en buenas condiciones al tercer día de hospitalización sin medicación antiarrítmica. En control ambulatorio al mes no se registraron eventos arrítmicos en chequeo del dispositivo.\n \n", "section_annotation": { "gold": [ { "end_offset": 576, "label": "PRESENT_ILLNESS", "segment": "Paciente masculino de 22 años de edad consultó al servicio de urgencia de nuestra institución por síncope recurrente. Estando en reposo en su casa, una hora posterior a haber finalizado entrenamiento de boxeo, presentó compromiso súbito de conciencia de aproximadamente un minuto de duración, con recuperación completa posterior. En las dos horas siguientes repitió episodios sincopales de similares características en tres oportunidades. En el hall de acceso al hospital presentó nuevo cuadro sincopal, por lo que fue trasladado al box de urgencia para evaluación inmediata. ", "start_offset": 0 }, { "end_offset": 1399, "label": "EXPLORATION", "segment": "Al ingreso se constató presión arterial de 126/82 mmHg, frecuencia cardiaca de 82 lpm, saturación de 99% y temperatura axilar de 36°C. El paciente no refería comorbilidades significativas ni antecedentes familiares de cardiopatía. Durante realización del ECG inicial paciente repitió síncope, objetivándose en el trazado fibrilación ventricular. Se iniciaron maniobras de reanimación y el paciente convirtió a ritmo sinusal después de unos segundos. Se repitió un ECG, que mostraba imagen de bloqueo incompleto de rama derecha, supradesnivel del ST e inversión de la onda T en precordiales derechas, sugerente de patrón Bragada tipo 1. A los pocos minutos se evidenció nuevo episodio de fibrilación ventricular y se procedió a la inmediata desfibrilación con 200 Joules de corriente bifásica, dando salida a ritmo sinusal. ", "start_offset": 576 }, { "end_offset": 1552, "label": "TREATMENT", "segment": "El paciente fue hospitalizado en Unidad Coronaria, donde fue sedado con lorazepam y se decidió iniciar infusión de isoproterenol a dosis de 0,25 ug/min. ", "start_offset": 1399 }, { "end_offset": 1936, "label": "EXPLORATION", "segment": "Se registra ECG durante infusión de isoproterenol, en el cual se apreció regresión del patrón de Brugada dado por normalización del segmento ST en V1-V2, desaparición de la imagen de bloqueo de rama derecha y restauración de la polaridad de la onda T. Ecocardiograma descartó patología estructural y exámenes de laboratorio no mostraron alteraciones significativas del medio interno. ", "start_offset": 1552 }, { "end_offset": 2301, "label": "EVOLUTION", "segment": "Evolucionó favorablemente, suspendiendo infusión antiarrítmica al segundo día e implantando cardiodesfibrilador bicameral (Protecta CRT-D, Medtronic) sin incidentes. Fue dado de alta en buenas condiciones al tercer día de hospitalización sin medicación antiarrítmica. En control ambulatorio al mes no se registraron eventos arrítmicos en chequeo del dispositivo.\n \n", "start_offset": 1936 } ] } }
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Los pacientes evolucionan con claudicación intermitente y, posteriormente, con dolor de reposo asociado a alteraciones de la sensibilidad10,11. Pueden presentar alteraciones tróficas de las extremidades, engrosamiento de las uñas, xerosis, edema, linfangitis, pulsos disminuidos, piel fría, eritema, palidez o cianosis. Finalmente, aparecen úlceras y necrosis12,13. La ecografía Doppler y la angiografía permiten cuantificar la magnitud del deterioro de la circulación arterial. El tratamiento incluye ejercicio físico, manejo de la diabetes y de los otros factores de riesgo14. El tratamiento definitivo es la revascularización15.\n", "section_annotation": { "gold": [ { "end_offset": 572, "label": "EXPLORATION", "segment": "La isquemia en las extremidades inferiores es una complicación a largo plazo de la diabetes. Los pacientes evolucionan con claudicación intermitente y, posteriormente, con dolor de reposo asociado a alteraciones de la sensibilidad10,11. Pueden presentar alteraciones tróficas de las extremidades, engrosamiento de las uñas, xerosis, edema, linfangitis, pulsos disminuidos, piel fría, eritema, palidez o cianosis. Finalmente, aparecen úlceras y necrosis12,13. La ecografía Doppler y la angiografía permiten cuantificar la magnitud del deterioro de la circulación arterial. ", "start_offset": 0 }, { "end_offset": 725, "label": "TREATMENT", "segment": "El tratamiento incluye ejercicio físico, manejo de la diabetes y de los otros factores de riesgo14. El tratamiento definitivo es la revascularización15.\n", "start_offset": 572 } ] } }
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"start_offset": 3973 }, { "boundary": null, "end_offset": 3991, "span": "de", "start_offset": 3989 }, { "boundary": null, "end_offset": 4000, "span": "control.", "start_offset": 3992 }, { "boundary": null, "end_offset": 4001, "span": "\n", "start_offset": 4000 } ] }, "note_id": "S0034-98872014000200015-1", "note_text": "Mujer de 70 años que consultó en servicio de Urgencias de nuestro hospital por cuadro de dolor retroesternal opresivo, intensidad 10/10, irradiado a epigastrio, de aproximadamente 15 min de duración, asociado a sudoración profusa y palpitaciones.\n Refería haber presentado episodio de similares características dos días antes, lo que motivó consulta en otro servicio de urgencias, donde fue evaluada con electrocardiograma (ECG) y enzimas cardiacas; no impresionando cuadro de origen coronario, por lo que se derivó a su domicilio. Dentro de sus antecedentes destacaba historia de hipertensión arterial de data no precisada, en tratamiento con atenolol 50 mg al día, y cáncer de mama tratado 20 años antes con cirugía y radioterapia. La paciente no era fumadora ni tenía antecedentes familiares de cardiopatía coronaria.\n Al ingreso, la paciente se encontraba sudorosa, pero sin dolor. La presión arterial era 100/60 mmHg y su frecuencia cardiaca 87 lpm. Al examen físico destacaban yugulares colapsables en inspiración, la auscultación cardiaca no reveló soplos ni galope y había sensibilidad a la palpación epigástrica. El resto del examen no era destacable. Al interrogatorio, la paciente refería historia de episodios similares durante los últimos 6 meses, sin clara relación con esfuerzos físicos, que en un principio eran esporádicos pero que durante la última semana se hicieron más frecuentes, casi diarios. El ECG mostró un discreto supradesnivel del segmento ST (SDST) anteroseptal con inversión de la onda T de V1 a V3, que ya era evidente en ECG tomado 2 días antes y que no fue evolutivo.\n \n La radiografía de tórax mostró una silueta cardiaca de tamaño normal y no se observaban signos de congestión pulmonar. La paciente fue admitida a la unidad coronaria, con terapia de síndrome coronario agudo sin SDST. La troponina I de ingreso fue de 0,07 pg/ml (valor normal < 0,05) y la CK total fue de 117 U/L con una fracción MB de 25.\n A las pocas horas de ingreso la paciente evolucionó con crisis de angor intenso, 10/10, asociado a disnea, palpitaciones, cefalea, sudoración y enrojecimiento facial. Se constató alza de presión arterial hasta 260/130 mmHg y al monitor se evidenció taquicardia sinusal con extrasistolía supraventricular y ventricular frecuentes, y conducción aberrante con morfología de bloqueo completo de rama derecha de aproximadamente 5 min de duración. No hubo episodios de hipotensión ni síncope. Dado las características del episodio se sospechó el diagnóstico de feocromocitoma. Se suspendió heparina, se aportó solución fisiológica y se inició doxazosina en dosis de 1 mg cada 12 h. Se midió durante la crisis catecolaminas plasmáticas y metanefrinas urinarias (previo al inicio de doxazosina), que fueron marcadamente elevadas.\n \n Se solicitó una resonancia magnética de abdomen, que confirmó el diagnóstico, evidenciando una masa suprarrenal derecha de 6 cm de diámetro.\n \n El cintigrama con 123-I-metaiodobencilguanidina (MIBG) confirmó la captación en la masa descrita y no mostró metástasis.\n \n Adicionalmente se realizó un ecocardiograma transtorácico, que mostró hipertrofia ventricular izquierda leve y compromiso leve de la función sistólica global, con una fracción de eyección (FE) estimada por Simpson de 42%, y una coronariografía sin incidentes durante el procedimiento, que descartó la presencia de enfermedad coronaria. La disfunción ventricular fue asumida en contexto de daño miocárdico por catecolaminas.\n La paciente se preparó para la intervención quirúrgica con bloqueo α y β-adrenérgico escalonado con doxazosina y, luego de 2 días, propanolol. La cirugía se realizó 11 días después, sin complicaciones hemodinámicas significativas y cursó con un postoperatorio favorable. La paciente fue dada de alta a los 4 días en buenas condiciones. Desde el punto de vista clínico, cursó con buena evolución posterior con disminución progresiva en la dosis de antihipertensivos y normalización de la función ventricular en ecocardiografía de control.\n", "section_annotation": { "gold": [ { "end_offset": 532, "label": "PRESENT_ILLNESS", "segment": "Mujer de 70 años que consultó en servicio de Urgencias de nuestro hospital por cuadro de dolor retroesternal opresivo, intensidad 10/10, irradiado a epigastrio, de aproximadamente 15 min de duración, asociado a sudoración profusa y palpitaciones.\n Refería haber presentado episodio de similares características dos días antes, lo que motivó consulta en otro servicio de urgencias, donde fue evaluada con electrocardiograma (ECG) y enzimas cardiacas; no impresionando cuadro de origen coronario, por lo que se derivó a su domicilio. 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", "start_offset": 1724 }, { "end_offset": 1945, "label": "EXPLORATION", "segment": "La troponina I de ingreso fue de 0,07 pg/ml (valor normal < 0,05) y la CK total fue de 117 U/L con una fracción MB de 25.\n ", "start_offset": 1822 }, { "end_offset": 2112, "label": "EVOLUTION", "segment": "A las pocas horas de ingreso la paciente evolucionó con crisis de angor intenso, 10/10, asociado a disnea, palpitaciones, cefalea, sudoración y enrojecimiento facial. ", "start_offset": 1945 }, { "end_offset": 2516, "label": "EXPLORATION", "segment": "Se constató alza de presión arterial hasta 260/130 mmHg y al monitor se evidenció taquicardia sinusal con extrasistolía supraventricular y ventricular frecuentes, y conducción aberrante con morfología de bloqueo completo de rama derecha de aproximadamente 5 min de duración. No hubo episodios de hipotensión ni síncope. Dado las características del episodio se sospechó el diagnóstico de feocromocitoma. 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de 1 h de evolución caracterizado por dolor retroesternal opresivo de inicio súbito y máxima intensidad. Ingresa sin compromiso hemodinámico, afebril, con examen cardiopulmonar normal. Electrocardiograma (ECG) muestra infradesnivel del ST difuso. Se inicia manejo médico con aspirina, morfina y nitroglicerina sublingual; y se solicitan enzimas cardíacas y dímero D. Exámenes de ingreso evidencian: hemoglobina 14,9 g/dL, hematocrito 43,7%, recuento de plaquetas 288.000/uL, eosinóflos 2,9%, VHS 17 mm/h, creatinina 0,43 mg/dL, troponina 0,45 ng/ml, creatincinasa (CK) 72 U/L, Ck-mb 2,8 U/L; dímero D 554 ng/ml.\n \n Se solicita AngioTAC de tórax por un dímero D elevado, que descarta tromboembolismo pulmonar.\n Persiste con dolor y ECG de control evidencia QS en AVL, qR en DI y cambios en la amplitud de la onda R en V4-V6. Enzimas cardiacas de control con troponina > 50 ng/ml, CK 3.800 U/L y Ck-mb > 300 U/L. Coronariografía muestra disección de tronco de la arteria coronaria izquierda, que se extiende a la arteria circunfleja (Cx) proximal y una rama marginal pequeña. Arteria descendente anterior (ADA) y coronaria derecha sin lesiones. Se instala balón de contrapulsación aórtica y se traslada a cirugía, donde se realiza bypass con arteria mamaria interna (LIMA) a ADA y puente safeno a lateral Cx, sin incidentes.\n \n Evoluciona favorablemente en el post operatorio, con retiro de drogas vasoactivas y balón de contrapulsación a las 48 h.\n Ecocardiograma de control con acinesia no adelgazada anterolateral con fracción de eyección de 42%. Se optimiza control farmacológico de insuficiencia cardíaca con bisoprolol 1,25 mg al día, espironolactona 25 mg al día, enalapril 5 mg cada 12 h y atorvastatina 40 mg al día. Se traslada al quinto día post cirugía a otro centro por motivos previsionales.\n Se controla en policlínico 15 días después del alta, encontrándose en buenas condiciones generales, asintomática, sin angina, en capacidad funcional I, con el tratamiento ya descrito, sin lactancia materna.\n", "section_annotation": { "gold": [ { "end_offset": 38, "label": "PRESENT_ILLNESS", "segment": "Paciente de sexo femenino de 38 años, ", "start_offset": 0 }, { "end_offset": 209, "label": "PAST_MEDICAL_HISTORY", "segment": "multípara de 5, IMC 25,7 kg/m2, puérpera de 7 días (parto por cesárea en otra institución), con antecedente de hipotiroidismo en tratamiento con levotiroxina 75 mcg/día.\n ", "start_offset": 38 }, { "end_offset": 369, "label": "PRESENT_ILLNESS", "segment": "Consulta en un hospital general de Santiago por cuadro de 1 h de evolución caracterizado por dolor retroesternal opresivo de inicio súbito y máxima intensidad. 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Enzimas cardiacas de control con troponina > 50 ng/ml, CK 3.800 U/L y Ck-mb > 300 U/L. Coronariografía muestra disección de tronco de la arteria coronaria izquierda, que se extiende a la arteria circunfleja (Cx) proximal y una rama marginal pequeña. Arteria descendente anterior (ADA) y coronaria derecha sin lesiones. 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Destacaba entre sus antecedentes la presencia de hipotiroidismo en tratamiento con T4 50 mcg/día y bypass intestinal por obesidad mórbida 5 años antes, con adelgazamiento de más de 70 Kg desde ese entonces. Desde la cirugía presentaba 4 a 5 deposiciones pastosas diarias. Al ingreso se encontraba vigil, eupneica y apirética. Presentaba adelgazamiento con índice de masa corporal (IMC) de 19. Tenía buen estado de hidratación y sus cifras de presión arterial (TA) eran 120/70 mmHg. La evaluación neuromuscular mostró hipotonía generalizada, paresia de cuatro miembros sin fasciculaciones y reflejos osteotendinosos presentes. Presentaba un potasio plasmático (K+pl) de 1,1 mEq/L y elevación de la CK. La dosificación de TSH se encontraba dentro de rango normal. Se inició reposición hidroelectrolítica con mejoría de la paresia muscular, disminución progresiva de las mialgias y normalización de los valores de K+pl y CK. La hipopotasemia se atribuyó a las pérdidas de origen digestivo, secundarias al procedimiento quirúrgico. Si bien la severidad de la misma puede ser causa de las manifestaciones neuromusculares, el hallazgo de niveles elevados de CK confirmó la sospecha de RM asociada.\n \n", "section_annotation": { "gold": [ { "end_offset": 129, "label": "PRESENT_ILLNESS", "segment": "Mujer de 46 años que consultó por debilidad progresiva y mialgias intensas de una semana de evolución que le impedían deambular. ", "start_offset": 0 }, { "end_offset": 401, "label": "PAST_MEDICAL_HISTORY", "segment": "Destacaba entre sus antecedentes la presencia de hipotiroidismo en tratamiento con T4 50 mcg/día y bypass intestinal por obesidad mórbida 5 años antes, con adelgazamiento de más de 70 Kg desde ese entonces. Desde la cirugía presentaba 4 a 5 deposiciones pastosas diarias. 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