[Inverted papilloma. Report of two cases and bibliographic review].
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.
Cánovas Ivorra
José Antonio
JA
Servicio de Urología, Hospital "Mare de Deu dels Lliris", Alcoy, Alicante, España. jacanovas@hotmail.com
García Zamora
José Antonio
JA
Losa García
José Luis
JL
Fernández García
Juan Salvador
JS
Sánchez Díaz
Antonio Francisco
AF
Cuesto Climent
Angel
A
D000368:Aged; D006801:Humans; D008297:Male; D018308:Papilloma, Inverted / Q000473:pathology*; D001749:Urinary Bladder Neoplasms / Q000473:pathology*