Table 2.
Note.- *All 9 oncocytomas sized < 5.5 cm, †Mean size of all renal masses (9 oncocytomas and 7 papillary RCCs) = 2.5 cm, ‡Mean size of all renal masses (12 oncocytomas and 67 RCCs) = 2.6 cm. CT = computed tomography, HU = Hounsfield unit, NA = none available, RCC = renal cell carcinoma, US = ultrasonography