[Heterologous mesodermal tumor of the uterus of the chondrolipomyxosarcoma type].

A case of heterologous mesodermal tumor of the uterus of the chondrolipomyxosarcoma type in a woman of 70 is described. This observation was peculiar in that the tumor was benign for 25 years. Malignancy and extensive metastases into bones developed during the last year of life.