34. Description of Clinical Features and CT Findings of Greater Omental Infarction

Nguyen Van Hieu, Ho Xuan Tuan, Pham Hong Duc

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Abstract

The study describes clinical features and computed tomography (CT) images of omental infarction. Subjects included 18 patients with an average age of 49.4 ± 19.5 years, with a slight male predominance, which can be seen in obese patients and with previous abdominal condition. Clinically, patients commonly presented with acute abdominal pain without fever (94.4%). Inflammatory markers were often non-specific. Abdominal CT with intravenous contrast was crucial in diagnosing greater omental infarction. CT characteristics included heterogeneous fat density lesions located just under the right abdominal wall (no case found on the left side), with a size greater than 20 mm (average 46.6 ± 15.2mm). The lesions were oval-shaped (77.8%) and could have a peripheral hyperdense rim (44.4%). There were no case of adjacent colonic wall thickening due to inflammation. Conservative treatment was predominantly used (83.3%), with no complication resulting to stable discharge from the hospital. Surgery would be indicated if there was a whirl sign of omental torsion. Therefore, CT imaging is crucial for omental infarction diagnosis and ruling out other acute causes requiring surgical intervention.

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References

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