A Case of Intraperitoneal Angiosarcoma with Hemorrhage

Yusuke Ome, Kazuyuki Kawamoto, Yoshinori Morimoto, Tadashi Ito and Keizo Ogasahara

Department of Surgery, Kurashiki Central Hospital

We report a case of intraperitoneal angiosarcoma with hemorrhaging. A 66-year-old man admitted for significant anemia and gastromegaly was found in. A computed tomography (CT) and abdominocentesis showed to have a hemoperitoneal mass, but the hemorrhaging point was not clear. Emergency surgery to control hemorrhaging showed numerous dark red, individually bleeding nodules a few millimeters in size on the mesentery, together with multiple 2-3 centimeters nodes in the greater omentum regarded as the main hemorrhaging source. Omentectomy did not provide complete hemostasis. Examination of the abdominal organs showed no primary tumor. Histopathological findings suggested angiosarcoma, but an additional workup did not determine the primary tumor. The definitive diagnosis was angiosarcoma of the greater omentum or mesentery-extremely rare conditions with an overall dismal prognosis. Our patient died 33 days postoperatively.

Key words
angiosarcoma, omentum, mesentery

Reprint requests
Yusuke Ome Department of Surgery, Kurashiki Central Hospital
1-1-1 Miwa, Kurashiki, 710-8602 JAPAN

Accepted
June 18, 2009

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