Omental infarction associated with right-sided heart failure

A 31-year-old man with a known congenital heart disease presented with card ial decompensation and an acute abdomen with tenderness in the right inferi or abdominal quadrant. Because infectious parameters were slightly elevated , acute appendicitis was suspected. A CT scan showed an isolated focal infi ltration of the omentum, superficial to the ascending colon, small amounts of ascites, and dilated hepatic and mesenteric veins. Laparoscopic resectio n and histopathologic examination confirmed hemorrhagic omental infarction due to thromboses of several small omental veins. This is a report on the p athogenesis, differential diagnoses, and CT findings of omental infarction.