Omental cake

Omental cake refers to infiltration of the omental fat by material of soft-tissue density. The appearances refer to the contiguous omental mass simulating the top of a cake. Masses on the peritoneal surfaces and malignant ascites may also be present. 


The most common cause is metastases from ovarian, gastric or colon cancer

Differential diagnosis

Tuberculous peritonitis may also give this appearance. Lymphoma can present as omental caking, diffuse peritoneal thickening, and ascites, the best clue is significant lymphadenopathy. A core biopsy may be helpful if the primary tumour is unknown.

Inspired signs
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Article Information

rID: 1773
Section: Gamuts
Tag: cases
Synonyms or Alternate Spellings:
  • Omental caking
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    Case 1
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     Case 2
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    Case 3: due to peritoneal tuberculosis
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