Intravenous Lipoleiomyomatosis of Uterus: a Rare Subtype of Intravenous Leiomyomatosis

Lipoleiomyomatosis (LPL) is a rare benign tumor composed of fat and smooth muscle. Intravenous LPL is a rare subtype of intravenous leiomyomatosis (IVL). Although LPL is considered to be a benign lesion, IVL recurs in approximately 10% of reported cases, and must be distinguished from low-grade endometrial stromal sarcoma and leiomyosarcoma with vascular invasion. We report a case of intravenous LPL in the light of literature as a diagnostic challenge.