What is ameboma?

Updated: Jul 19, 2019
  • Author: Vinod K Dhawan, MD, FACP, FRCPC, FIDSA; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

Ameboma, a less common form of intestinal disease, arises from the formation of annular colonic granulation in response to the infecting organisms, which results in a large local lesion of the bowel. It presents as a right lower quadrant abdominal mass, which may be mistaken for carcinoma, tuberculosis, Crohn disease, actinomycosis, or lymphoma. Biopsy findings assist in establishing the correct diagnosis. Rectal masses that resemble carcinoma on colonoscopy have also been noted. [47]


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