COMPUTED-TOMOGRAPHY OF RENAL ONCOCYTOMA

Abstract

Patients (6) with small solid renal tumors were evaluated by computed tomography (CT). Two patients had renal oncocytomas, 3 had small renal cell adenocarcinomas and 1 had separate foci of each of these tumors in the same kidney. Several features that may alert the clinician to the possible presence of oncocytoma are described. Unless the dense central scar that can be seen in larger oncocytomas is visualized on CT (as was the case in 1 of the patients studied), differentiation between oncocytomas and renal cell carcinomas by CT is not possible.