Renal oncocytoma: Diagnostic and therapeutic aspects

Renal oncocytoma is one of the most unusual benign lesions, which presents as a complicated mass resulting in a diagnostic and therapeutic dilemma. A new case of renal oncocytoma in a 13-year-old boy is presented. The clinoco pathologic features of this rare entity are discussed, with special emphasi s on diagnosis and treatment. There are no specific presumptive clinical an d laboratory findings, including tumor markers, ploidy analysis, and imagin g techniques that distinguish oncocytoma from other renal masses. The most important diagnostic aid is to bear this entity in mind when a child presen ts with an unexplained renal mass. Frozen section biopsies followed by part ial nephrectomy are mandatory for the appropriate treatment after excluding bilateral or multifocal occurrence. J Pediatr Surg 35:1396-1398. Copyright (C) 2000 by W.B. Saunders Company.