• Hepato Gastroenterol · May 1999

    Review Case Reports

    Primary omental liposarcoma presenting with torsion: a case report.

    • H Tsutsumi, S Ohwada, I Takeyoshi, M Izumi, T Ogawa, T Fukusato, and Y Morishita.
    • Second Department of Surgery, Gunma University School of Medicine, Maebashi, Japan.
    • Hepato Gastroenterol. 1999 May 1; 46 (27): 2110-2.

    AbstractAn 83 year-old man was admitted because of abdominal pain and distention. A mass measuring 20x10 cm and associated with tenderness and guarding was palpable in the right lower abdomen. Ultrasonography and computed tomography showed a tumor with solid and multiple cystic areas. Celiac angiography showed slight tumor vascularity fed by the right gastroepiploic artery. A malignant tumor of the omentum was suspected. At laparotomy, torsion of the omental pedicle of the tumor was found. Histological examination of the resected tumor revealed characteristics of round-cell liposarcoma, which usually has a poor prognosis. The patient has been alive and well for 2 years. Primary liposarcoma of the omentum has been reported in only seven previous cases. None of these patients presented with torsion, and no report has thus far included a documented survival.

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