sentence: The epithelial expression of VEGF in DCs might constitute an additional mechanism for the enlargement of these lesions , maintaining the stimulus for angiogenesis and vascular permeability.In conclusion , the results of the present study suggest that higher positivity of VEGF expression by the epithelial cells in KCOT may promote growth via an autocrine proliferative effect on the cystic epithelium , while paracrine stimulation of the vascular net work may maintain survival and growth , and promote enlargement and expansion through protein accumulation in the cystic cavity and bone resorption .