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Primary omental liposarcoma presenting with torsion: a case report
H Tsutsumi1, S Ohwada, I Takeyoshi
1Second Department of Surgery, Gunma University School of Medicine, Maebashi, Japan.
Hepato-Gastroenterology
|August 3, 1999
Summary
This case report details an elderly man with omental liposarcoma, a rare abdominal tumor. Successful surgical intervention for this round-cell liposarcoma, complicated by pedicle torsion, resulted in a positive 2-year survival outcome.
Area of Science:
- Oncology
- Surgical Pathology
Background:
- Primary liposarcoma of the omentum is an exceptionally rare malignancy.
- Reports of omental liposarcoma are scarce, with limited data on clinical presentation and prognosis.
Observation:
- An 83-year-old male presented with abdominal pain and distention, revealing a large palpable mass.
- Imaging studies (ultrasound, CT, celiac angiography) indicated a complex solid and cystic tumor with minimal vascularity.
- Laparotomy identified torsion of the omental pedicle supplying the tumor.
Findings:
- Histological examination confirmed the diagnosis of round-cell liposarcoma, a subtype typically associated with a poor prognosis.
- The patient underwent surgical resection of the tumor.
- This case represents one of the few documented instances of primary omental liposarcoma.
Implications:
- The successful surgical management of omental liposarcoma with pedicle torsion challenges the generally poor prognosis associated with this rare tumor.
- This case highlights the importance of considering rare diagnoses in the differential for abdominal masses.
- Long-term survival is possible with prompt diagnosis and surgical intervention, even in cases of round-cell liposarcoma.