MULTILOCULAR CYSTIC EPITHELIOID LEIOMYOMA OF THE UTERUS WITH FOCAL LYMPHANGIOMA-LIKE PATTERN - REPORT OF A CASE WITH IMMUNOHISTOCHEMICAL STUDY

We report a rare case of epithelioid leiomyoma of the uterus presentin g as a multilocular cystic mass containing clear fluid. The histologic basis of cysts was the diffuse intratumoral cystic degeneration. Hist ologically, the presence of numerous cystic cavities of variable size raised the possibility that vascular abnormalities, such as hemangioma , lymphangioma, and diffuse cavernous angiomatosis, could be associate d with epithelioid leiomyoma. An immunohistochemical study using endot helial cell and basement membrane markers, was helpful in excluding th e vascular nature of the cystic cavities and revealed an unexpected fo cal lymphangioma-like pattern as a peculiar component of tumor.