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Am J Surg Pathol. 1986 Jun;10(6):420-8.

Giant and symptomatic inflammatory polyps of the colon in idiopathic inflammatory bowel disease.


Four cases of giant inflammatory polyps were found in a series of 86 consecutive colectomies for inflammatory bowel disease. Two presented a distinctive clinical syndrome of abdominal pain and chronic iron-deficiency anemia due to blood loss. Secondary ulceration of the heads of the polyps accounted for the bleeding and anemia, and the size of the polyps accounted for the abdominal pain. In both cases unusually long portions of colon were involved by the giant polyps. The third and fourth cases had rare complications--reactivation of an enterocutaneous fistula and perforation of an acquired diverticulum. These cases demonstrate that giant inflammatory polyps may produce symptoms independently of the underlying inflammatory bowel disease. In reported cases of giant inflammatory polyps, approximately two-thirds had Crohn's disease and one-third had ulcerative colitis. The transverse colon was the commonest location, pain was the commonest symptom, and the polyps were localized to a short segment of colon in the majority of cases. More than 50% of cases mimicked neoplasm on barium enema. Giant inflammatory polyps may produce a variety of distinctive signs and symptoms and deserve independent recognition.

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