Retroperitoneal Smooth Muscle Tumor of Uncertain Malignant Potential (STUMP): Case Report

Retro peritoneal smooth muscle tumors of uncertain malignant potential (STUMP) are rare and often misdiagnosed as leiomyosarcoma. We hereby report the case of a retroperitoneal STUMP diagnosed on a surgical specimen in a 44-year-old woman without any history of disease.