Korean Journal of Gynecologic Oncology  2005;16(2):177-181

A case of retroperitoneal huge smooth muscle tumor misleading to ovarian cancer.

Young Eun JEON 1 ; Su Ran CHOI ; Seung Woo LEE ; Jung Un CHOI ; Jeong Bae KANG ; Pong Rheem JANG ; Young Han PARK ; Sung Joo KIM ; Chae Chun RHIM ; Soo Kee MIN

Affiliations

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Keywords

Smooth muscle tumor; Retroperitoneal mass

Country

Republic of Korea

Language

Korean

Abstract

Smooth muscle tumors are very common tumors in the uterus and related adjacent structures but occur rarely in the retroperitoneum. Traditionally, most retroperitoneal smooth muscle tumor are believed to be malignant. But well-differentiated smooth muscle tumors with lack of atypia, necrosis, and significant mitotic activity appear to have a benign behaviors. Laparotomy revealed a huge solid tumor in the retroperitoneal space, about 50 cm in diameter, and histologically diagnosed as a smooth muscle tumor of uncertain malignant potential (STUMP). We report a case of primary retroperitoneal smooth muscle tumor with a brief review of literatures.