Malignant mixed müllerian tumors of the uterus. A clinicopathologic assessment of 34 cases.

We have analyzed clinical and pathologic features of a series of 34 patients with malignant mixed müllerian tumors of the uterus. This study includes 17 homologous and 17 heterologous lesions. The most significant prognostic indicator in our patients was tumor extent (stage) at diagnosis. Of lesser importance were the presence of heterologous elements, especially chondrosarcoma, high grade of carcinoma and tumor size. Survival rates were 52% at 2 years and 36% at 5 years for homologous tumors; and 47% and 14%, respectively, for the heterologous variety.