Uterine carcinosarcoma with heterologous mesenchymal element: a case report of a rare and aggressive tumor.

Uterine carcinosarcoma (UCS), also known as malignant mixed Müllerian tumor, is a rare malignancy, which consists of both carcinomatous and sarcomatous elements, with a clinical picture resembling endometrial carcinoma. We report a case of a 74-year-old woman is reported with UCS, diagnosed after a 7 months history of vaginal bleeding and abdominal pain. Previous transvaginal sonography showed nonspecific findings, but a repeated one revealed a central uterine mass.