title: [Inverted papilloma. Report of two cases and bibliographic review].
abstract: OBJECTIVE
  Inverted papilloma is a rare polypoid lesion of the urothelium, known as a different entity since 1963. Not many more than 100 cases have been published. Although its malignant potential is still unknown, several scientific publications have noted it.
  
  
  METHODS
  We report to cases of inverted papilloma and perform a detailed bibliographic review.
  
  
  RESULTS
  Both patients were diagnosed by the Pathology Department and entered periodic follow-up visits, being free of recurrence at 24 and 18 months respectively.
  
  
  CONCLUSIONS
  The possibility that inverted papilloma is a lesion with malignant potential should be considered in every case, and we suggest that patients with this diagnosis should enter a follow-up protocol like any bladder neoplasia.
authors.affiliation: Servicio de Urología, Hospital "Mare de Deu dels Lliris", Alcoy, Alicante, España. jacanovas@hotmail.com
authors.forename: José Antonio
authors.initials: JA
authors.lastname: Cánovas Ivorra
authors.forename: José Antonio
authors.initials: JA
authors.lastname: García Zamora
authors.forename: José Luis
authors.initials: JL
authors.lastname: Losa García
authors.forename: Juan Salvador
authors.initials: JS
authors.lastname: Fernández García
authors.forename: Antonio Francisco
authors.initials: AF
authors.lastname: Sánchez Díaz
authors.forename: Angel
authors.initials: A
authors.lastname: Cuesto Climent
mesh_terms: D000368:Aged; D006801:Humans; D008297:Male; D018308:Papilloma, Inverted / Q000473:pathology*; D001749:Urinary Bladder Neoplasms / Q000473:pathology*