text: Renal<unk>  in renal oncocytoma patients may show: solid mass ( help to distinguish solid from cystic mass), central scarring, calcification, central necrosis which none of them characteristics for indicating a specific renal lesion.
option_0: Renal oncocytoma ultrasound
option_1: Renal oncocytoma MRI
option_2: Renal oncocytoma CT
option_3: Cystic nephroma ultrasound
option_4: Renal cell carcinoma CT
option_5: Renal oncocytoma physical examination
option_6: Metanephric adenoma ultrasound
option_7: Renal oncocytoma biopsy