Extragenital malignant mixed mesodermal tumor: case report and review of the literature.

Malignant mixed mesodermal tumors rarely occur in extragenital sites. An 80-year-old patient presented with a malignant mixed mesodermal tumor, consisting of papillary serous adenocarcinoma and chondrosarcomatous components. The patient refused further treatment following surgery and died of disease 2.5 months later. Based on the present case and a review of the literature, primary extragenital malignant mixed mesodermal tumors prove to be rare but highly malignant neoplasms. Further data is yet to be gathered in order to determine the exact origin and behavior of these tumors.