Annali italiani di chirurgia
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A 61-year-old male patient presented to our hospital's emergency department with a history of worsening abdominal pain. The symptoms began as epigastric pain and later localized to the right lower quadrant. On physical examination, there was rebound tenderness mainly in the right lower quadrant and in the right upper quadrant. ⋯ Primary omental torsion should be considered in the differential diagnosis of acute abdomen. The surgeon must remain aware of the disease and search for it if, at laparotomy, other adequate cause is not found to explain the symptoms, especially if free sero-sanguineous fluid is found in the peritoneal cavity. KEY WORDS: Acute abdomen, Greater omentum, Omental torsion, Omental infarction, Omental necrosis.