title: Polypoid lesions at the anorectal junction: barium enema findings.
abstract: Although the anorectal junction is easily accessible, this area may be difficult to evaluate both radiologically and endoscopically because it is relatively collapsed. This pictorial essay illustrates the barium enema radiographic findings and reviews the radiologic and endoscopic pitfalls in the diagnosis of lesions of the anorectal junction.
authors.affiliation: Department of Radiology, Hospital of University of Pennsylvania, Philadelphia 19104.
authors.forename: S
authors.initials: S
authors.lastname: Kahn
authors.forename: S E
authors.initials: SE
authors.lastname: Rubesin
authors.forename: M S
authors.initials: MS
authors.lastname: Levine
authors.forename: I
authors.initials: I
authors.lastname: Laufer
authors.forename: H
authors.initials: H
authors.lastname: Herlinger
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging; D000236:Adenoma / Q000000981:diagnostic imaging; D000328:Adult; D000368:Aged; D001004:Anus Diseases / Q000000981:diagnostic imaging; D001005:Anus Neoplasms / Q000000981:diagnostic imaging*; D001466:Barium Sulfate; D002277:Carcinoma / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D004724:Endoscopy; D004733:Enema; D005260:Female; D006484:Hemorrhoids / Q000000981:diagnostic imaging; D006801:Humans; D007417:Intestinal Polyps / Q000000981:diagnostic imaging*; D008875:Middle Aged; D011859:Radiography; D012002:Rectal Diseases / Q000000981:diagnostic imaging; D012004:Rectal Neoplasms / Q000000981:diagnostic imaging*
chemical_list: D001466:Barium Sulfate