title: [Four new cases of urothelial inverted papilloma].
abstract: Urothelial inverted papilloma account for 2.2% of all urothelial tumours. The preferred location is the bladder; they occur singly and are generally benign, although the majority of authors agrees in treating this entity as a tumour of low aggressiveness. The report contributes four cases of inverted papilloma, three in male patients and the fourth in a female. One was located in the renal pelvis. A revision is made of the etiology, clinical signs and symptoms, diagnosis and treatment, as well as their relationship to surface carcinoma, as it occurs asynchronously in one of the cases described.
authors.affiliation: Servicio de Urología, Hospital de la Princesa, Universidad Autónoma de Madrid.
authors.forename: A
authors.initials: A
authors.lastname: Fernández Borrell
authors.forename: F
authors.initials: F
authors.lastname: Peinado Ibarra
authors.forename: F
authors.initials: F
authors.lastname: Gómez-Sancha
authors.forename: M
authors.initials: M
authors.lastname: Fernández Arjona
authors.forename: F
authors.initials: F
authors.lastname: Teba del Pino
authors.forename: R
authors.initials: R
authors.lastname: Arellano Gañán
authors.forename: J C
authors.initials: JC
authors.lastname: Romero Tejeda
authors.forename: I
authors.initials: I
authors.lastname: Pereira Sanz
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007682:Kidney Pelvis / Q000473:pathology; D008297:Male; D008875:Middle Aged; D018308:Papilloma, Inverted / Q000473:pathology*; D001749:Urinary Bladder Neoplasms / Q000473:pathology*