title: Benign polyp with prostatic-type epithelium of the urinary bladder: a case report.
abstract: We report a case of benign polyp with prostatic-type epithelium of the urinary bladder. A 58-year-old male presented with gross hematuria. Cystoscopic examination revealed a 2-mm polypoid lesion in the mid trigone. Immunohistochemical demonstration of prostatic acid phosphatase and prostatic specific antigen in the urothelial cells as well as the prostatic-type epithelial cells suggested the histogenesis of this polyp to be metaplasia of the urothelium.
authors.affiliation: Department of Urology, Kobe University School of Medicine.
authors.forename: J
authors.initials: J
authors.lastname: Ishikawa
authors.forename: H
authors.initials: H
authors.lastname: Yasuno
authors.forename: A
authors.initials: A
authors.lastname: Higuchi
authors.forename: S
authors.initials: S
authors.lastname: Kamidono
authors.forename: S
authors.initials: S
authors.lastname: Okada
mesh_terms: D000951:Antigens, Neoplasm / Q000032:analysis; D002828:Choristoma / Q000175:diagnosis / Q000473:pathology*; D004848:Epithelium / Q000473:pathology; D006801:Humans; D008297:Male; D008679:Metaplasia; D008875:Middle Aged; D011127:Polyps / Q000175:diagnosis / Q000473:pathology*; D011467:Prostate; D017430:Prostate-Specific Antigen; D001743:Urinary Bladder / Q000473:pathology; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis / Q000473:pathology*
chemical_list: D000951:Antigens, Neoplasm; D017430:Prostate-Specific Antigen