title: Localized giant pseudopolyposis in ulcerative colitis.
abstract: A case of localized giant pseudopolyposis in ulcertative colitis is discussed in which a mass effect mimicked tumor. The fulminant collection of pseudopolyps was palable in the epigastrium on physical exam and caused a partial obstruction to the retrograde flow of barium. Carcinoma is a worrisome possibility in ulcerative colitis, but localized giant pseudopolyposis may also present as a mass.
mesh_terms: D000328:Adult; D003093:Colitis, Ulcerative / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology; D003106:Colon / Q000473:pathology; D003110:Colonic Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D003937:Diagnosis, Differential; D003951:Diagnostic Errors; D006801:Humans; D007417:Intestinal Polyps / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D011859:Radiography