A case report of an ovarian lipoma.

Background: Ovarian lipomas are a rare entity, with most being described as part of a teratomatous origin. This is a case report of a lipoma of an ovary not associated with a teratoma or an hyperandrogenic state. Case: A 66-year-old female underwent an exploratory laparotomy and a left ovarian tumor measuring about 7 to 8 cm was removed. Microscopic examination demonstrated a pattern of proliferation of benign adipose tissue with focal areas of fibrovascular septae and no other tissue of different origin. Conclusions: A MEDLINE search did not reveal any well-documented cases of a pure ovarian lipoma. The cases reported were associated with teratomas, lipid cell tumors, and lipoleiomyomas. Thus, it appears that lipomas of the ovary are rare, but can occur.