Epithelioid cell's uterine leiomyoma uteri. A case report with immunohistochemical study.

In the present report we refer to a rare case of uterine leiomyoma Uteri with epithelioid cells, characterized by an omogeneous light cell's structure and by a lymphangiomatous like histological aspect. An immunohistochemical study was carried out, using both endothelial and cell surface markers, as well as vascular markers. This study has allowed us to exclude the angiogenic origin of the neoplasm. It has, furthermore, revealed how the lymphangiomatous like histological aspect, even though being a peculiar component of the tumor, is to be put in relation with the epithelioid cells' layout, which has been evidenced by the immunohistochemistry to be of muscular nature.