text: Ultrasound may be helpful in the diagnosis of<unk>  adenoma. A finding on ultrasound suggestive of<unk>  adenoma is an expansile hypoechoic or hyperechoic mass.
option_0: Metanephric adenoma ultrasound
option_1: Renal oncocytoma ultrasound
option_2: Metanephric adenoma CT
option_3: Metanephric adenoma biopsy
option_4: Renal oncocytoma CT
option_5: Metanephric adenoma MRI
option_6: Renal oncocytoma MRI
option_7: Adrenocortical carcinoma ultrasound