Primary omental liposarcoma presenting with torsion: a case report.
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.
Tsutsumi
H
H
Second Department of Surgery, Gunma University School of Medicine, Maebashi, Japan.
Ohwada
S
S
Takeyoshi
I
I
Izumi
M
M
Ogawa
T
T
Fukusato
T
T
Morishita
Y
Y
D000368:Aged; D000369:Aged, 80 and over; D003952:Diagnostic Imaging; D006801:Humans; D008080:Liposarcoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D008297:Male; D009852:Omentum / Q000473:pathology / Q000601:surgery; D010534:Peritoneal Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D011379:Prognosis; D014102:Torsion Abnormality