title: [Renal oncocytoma: report of 14 cases and review of the literature].
abstract: Renal oncocytoma is an uncommon tumor. Of 223 renal tumors that were treated at our institution from 1970-1991, 14 (6.2%) were oncocytomas [9 females (65%) and 5 males (35%)]. The highest incidence was observed in the sixth decade (60.7 yrs). Tumor size range from 2 to 19 cm in diameter (mean = 8.07 cm); 11 (78.5%) were localized in the right kidney, principally in the superior pole. The tumor was incidentally discovered in 8 cases (57%); 1 case presented Wunderlich's syndrome; 1 had a palpable renal mass; 6 had abdominal pain. All the tumors were confined to the kidney. Thirteen were Robson stage I and 1 stage II. According to the UICC classification, 12 were T1, 1 T2 and 1 T3. All tumors were N0 M0. Patient evaluation included IVP (6), US (12), CT (14) and selective renal arteriography (2). The typical angiographic patterns were not observed in these 2 cases. Concerning the CT findings, in 8 cases (57%) the first diagnosis discarded was that of hypernephroma, although there were also signs suggestive of oncocytoma. Six cases (43%) showed signs indicating oncocytoma as first diagnosis. All patients were submitted to radical nephrectomy, which achieved good results in all cases at 7 months' to 5 years' follow up.
authors.affiliation: Servicio de Urología, Hospital Universitario Marqués de Valdecilla, Santander, España.
authors.forename: J M
authors.initials: JM
authors.lastname: Monge Mirallas
authors.forename: J L
authors.initials: JL
authors.lastname: Gutiérrez Baños
authors.forename: B
authors.initials: B
authors.lastname: Martín Garcia
authors.forename: R
authors.initials: R
authors.lastname: Hernandez Rodríguez
authors.forename: J A
authors.initials: JA
authors.lastname: Portillo Martín
authors.forename: M A
authors.initials: MA
authors.lastname: Correas Gómez
authors.forename: A
authors.initials: A
authors.lastname: Roca Edreira
mesh_terms: D018249:Adenoma, Oxyphilic / Q000175:diagnosis / Q000601:surgery; D000328:Adult; D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis / Q000601:surgery; D008297:Male; D008875:Middle Aged
vernacular_title: Oncocitoma renal: presentación de 14 casos y revisión de la literatura.