title: Differential diagnosis of gastric adenoma and type IIa early gastric cancer.
abstract: The endoscopic and radiographic findings of 45 gastric adenomas in 39 patients were followed for 6 months to 13 years and compared with type IIa early gastric cancer observed in 9 patients. Difficulties in the differential diagnosis of these disorders were evaluated. The following features were suggestive of gastric adenomas: clustered lesion; protuberance with gentle slope; smooth surface; and relatively young patients. Discrimination of adenoma from type IIa early gastric cancer is often difficult by visual observation alone; biopsy was essential in most patients. A group III adenoma verified on biopsy should be followed closely because the lesion may harbor a cancer (so-called carcinoma-in-adenoma) or a cancer may later develop.
authors.affiliation: Department of Radiology, Kumamoto University Hospital, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Tsuchigame
authors.forename: Y
authors.initials: Y
authors.lastname: Ogata
authors.forename: M
authors.initials: M
authors.lastname: Sumi
authors.forename: K
authors.initials: K
authors.lastname: Fukui
authors.forename: R
authors.initials: R
authors.lastname: Saito
authors.forename: K
authors.initials: K
authors.lastname: Nakashima
authors.forename: J
authors.initials: J
authors.lastname: Urata
authors.forename: A
authors.initials: A
authors.lastname: Arakawa
authors.forename: Y
authors.initials: Y
authors.lastname: Saito
authors.forename: M
authors.initials: M
authors.lastname: Takahashi
mesh_terms: D000236:Adenoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D000328:Adult; D000368:Aged; D001706:Biopsy; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology