[Renal oncocytoma].

Due to its nonspecific clinical and radiological features, renal oncocytoma is usually diagnosed on the operative specimen. Histological confirmation of the diagnosis is based on the distinction between oncocytoma and renal cell carcinoma (RCC), which can be difficult. Description of cases in which RCC and oncocytoma are present in the same tumour and the hypothesis of a link between oncocytoma and RCC further complicate the diagnosis of this tumour by the urologist. The authors reviewed the management of tumours suspected to be oncocytoma based on a review of the international literature concerning the diagnosis, natural history and treatment of renal oncocytoma.