Twenty six cases of primary uterine sarcomas treated between 1980-1990 are analyzed. There were 16 cases (62%) of endometrial stromal sarcoma, 8 cases (31%) of leiomyosarcoma and 2 cases (7%) of botryoid rhabdomyosarcoma. Symptoms of uterine sarcoma are presented. In 19 patients (73%) pathological diagnosis was obtained by endometrial curettage before surgery. Stage of disease was classified according to intraoperative scale of Lewis. Median survival for the whole group treated surgically, by radiotherapy and chemotherapy was 22.2 months. Five patients (19%) in whom the disease was limited to the endometrium survived more than 5 years. Recurrences of the neoplasm and their treatment by secondary cytoreductive surgery are described.