Renal oncocytoma has some particularities in diagnosis and prognosis. We re
port a retrospective study performed between 1987 and 1999 at the departeme
nt of urology of Charles Nicolle's hospital. Seven oncocytoma are found out
of 120 renal carcinoma. Features at sonography or CT scann or arteriograph
y can not suggest oncocytoma. The diagnosis is made at the pathology examin
ation. Renal oncocytoma is a benign tumor, Conservative surgery will be per
formed as possible. (C) 2001 Editions scientifiques et medicales Elsevier S
AS.