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Omental Infarction and Its Mimics

Omental infarction (OI) is an inflammatory condition in which torsion of the omental vessels results in necrosis of the greater omental fat. Because symptoms in omental infarction mimic other conditions that present with an acute abdomen, it is difficult to pinpoint the diagnosis on clinical grounds alone, and imaging consequently plays an important role in its diagnosis. Accurate diagnosis of omental infarction after consideration of clinical and imaging findings is important in curtailing unnecessary or delayed interventions with potential complications. Ultrasound and CT are helpful in defining the pathology in omental infarction and ruling out other clinical considerations.