title: Anal intraepithelial neoplasia in an inflammatory cloacogenic polyp.
abstract: A rare case of anal intraepithelial neoplasia arising in an inflammatory cloacogenic polyp is reported. While the occurrence of neoplasia complicating benign anal conditions is recognised, this case re-emphasises the need for careful histological examination of all perianal lesions.
authors.affiliation: Department of Histopathology, Hope Hospital, Salford, UK.
authors.forename: I M
authors.initials: IM
authors.lastname: Hanson
authors.forename: G R
authors.initials: GR
authors.lastname: Armstrong
mesh_terms: D000328:Adult; D001005:Anus Neoplasms / Q000473:pathology*; D002278:Carcinoma in Situ / Q000473:pathology*; D005260:Female; D006801:Humans; D007417:Intestinal Polyps / Q000473:pathology*; D009378:Neoplasms, Multiple Primary / Q000473:pathology*