A Case of Leiomyosarcoma of the Greater Omentum with Liver and Gastric Metastasis

Keishiro Aoyagi, Kota Yatsuka, Hiroshi Umetani, Tetsuro Nakagawa, Shojiro Yano, Teruhiko Fujii, Ruriko Araki, Hironori Ono, Hiroshi Fujimasa, Teruo Kakegawa*

Department of Surgery, Social Insurance Tagawa Hospital
*First Department of Surgery, Kurume University, School of Medicine

A case of leiomyosarcoma of the greater omentum was reported. The patient was a 41-year-old man who was admitted to our hospital with upper abdominal discomfort. Upper gastrointestinal barium contrast studies revealed no typical abnormal findings. Ultrasonography and computed tomography of the upper abdomen revealed a low density mass beneath the greater curvature of the stomach and gallbladder stones. Tumor markers such as CEA/AFP/CA19-9 were within normal limits. Laparotomy revealed a mass measuring 18×17 cm on the omentum, which was soft and mucinous and bled easily. Metastases were found in the left lateral inferior part of the liver and the anterior wall of the corpus of the stomach. We resected the tumor of the omentum and the metastatic sites. Pathological examination of the resected specimen revealed a leiomyosarcoma. The origin of the leiomyosarcoma of the omentum was considered to be the smooth muscle of the vessels.

Key words
leiomyosarcoma, greater omentum

Reprint requests
Keishiro Aoyagi First Department of Surgery Kurume University, School of Medicine
67 Asahi-machi, Kurume, 830 JAPAN

Accepted
April 17, 1991

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