Primary omental liposarcoma presenting with torsion: a case report. |
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Authors: | H Tsutsumi S Ohwada I Takeyoshi M Izumi T Ogawa T Fukusato Y Morishita |
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Institution: | Second Department of Surgery, Gunma University School of Medicine, Maebashi, Japan. |
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Abstract: | An 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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