Localized giant pseudopolyposis of the colon in granulomatous colitis: a case report and review of the literature.

A case of localized giant pseudopolyposis of the colon is presented. The case was proven histologically to be granulomatous colitis. This unusual manifestation of granulomatous colitis may mimic a large bowel carcinoma or less frequently villous adenoma. This is the first proven reported case of granulomatous colitis presenting in this manner.