Uterine Smooth-Muscle Tumors of Uncertain Malignant Potential

Abstract

Patients with five to ten mitoses per ten high-power fields and mild to moderate cellular atypia had a prognosis significantly better than that of patients with leiomyosarcomas. In this group, only 27% developed a recurrence, and after recurrence they tended to have a protracted course. Some of these tumors do have a very aggressive course, and the term "uncertain malignant potential" is appropriate.