[Mesodermal (Muller) mixed ovarian tumor]

A case of mesodermal (Müller) mixed tumor of the ovary is described. The tumor consisted of the endometrial component with benign epithelial structures, stromal sarcoma, rhabdomyosarcoma, and elements of undifferentiated sarcoma. By its histological structure the tumor may be classified as one of the variants of mesodermal (Müller) mixed tumor of the heterologous adenosarcoma type.