Segmental infarction of the omentum secondary to torsion: ultrasound and computed tomography diagnosis.

Segmental infarction of the omentum is a rare clinical entity that is seldom considered in the differential diagnosis for acute abdominal pain, especially as the clinical findings are so non-specific. Consequently, the diagnosis is usually made intraoperatively. The two cases presented here demonstrate the characteristic appearance of omental infarction on ultrasound and CT, which enables preoperative diagnosis. Preoperative radiological diagnosis may prevent unnecessary surgery.