title: Occult cancer in localized giant pseudopolyposis.
abstract: Localized giant pseudopolyposis is a rare complication in patients with ulcerative colitis which progresses to a huge intramural polypoid mass. Our case described here is a 30-yr-old female with chronic ulcerative colitis who developed localized giant pseudopolyposis with unexpected infiltrating adenocarcinoma. This case is one of an unusual form of cancer presentation in ulcerative colitis, and it indicates that we should be aware of the possibility of occult adenocarcinoma inside a large pseudopolyposis with no superficial dysplasia.
authors.affiliation: Second Department of Surgery, Hyogo College of Medicine, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Kusunoki
authors.forename: T
authors.initials: T
authors.lastname: Nishigami
authors.forename: H
authors.initials: H
authors.lastname: Yanagi
authors.forename: T
authors.initials: T
authors.lastname: Okamoto
authors.forename: Y
authors.initials: Y
authors.lastname: Shoji
authors.forename: Y
authors.initials: Y
authors.lastname: Sakanoue
authors.forename: T
authors.initials: T
authors.lastname: Yamamura
authors.forename: J
authors.initials: J
authors.lastname: Utsunomiya
mesh_terms: D000230:Adenocarcinoma / Q000209:etiology* / Q000473:pathology; D000328:Adult; D003093:Colitis, Ulcerative / Q000150:complications*; D003110:Colonic Neoplasms / Q000209:etiology* / Q000473:pathology; D003111:Colonic Polyps / Q000150:complications* / Q000209:etiology; D005260:Female; D006801:Humans