[Intravenous leiomyomatosis of the uterus].

We present a case of intravenous leiomyomatosis (IVL) associated leiomyoma of the uterus in a 57-year-old woman. It is clinically and morphologically suspected to be leiomyoma. IVL is a rare benign neoplasm that commonly grows into the pelvic veins and the inferior vena cava and, rarely, the right side of the heart.