Omental Cake

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A term of art referring to a flattened, firm omentum diffusely involved by neoplasia—e.g., carcinoma of the colon, ovary or stomach—or, far less commonly in developed nations, tuberculosis
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While an omental cake is classically associated with ovarian carcinoma, it may be seen with carcinomatosis and lymphomatosis, mesothelioma, primary peritoneal serous carcinoma, tubal carcinoma, and, rarely, cholangiocarcinoma.
The principal CT findings of the omental cake are the presence of abnormal and thickened omentum and ascites.
An abdominal plain film and a repeat CT scan demonstrated diffuse omental cakes with air-fluid levels in the small bowel.