Acute omental infarction--a report of six cases.

Six cases of acute omental infarction, a rare entity, are reported. Four of them are secondary to torsion and two are cases of primary infarction. Appendicitis is the most common mode of presentation of this condition. Except for one patient who was obese, no predisposing factors were discernible in these patients. The aetiology and pathogenetic mechanisms of this disease were reviewed.