Adrenal Mass in a Patient with High-Risk RCC

A 63-year-old man with history of a pT2N0M0 Stage II Grade 3 clear cell renal cell carcinoma who had undergone a laparoscopic left radical nephrectomy 18 months ago is found to have a new right adrenal mass.

The mass measures 3 cm in diameter and demonstrates an attenuation of 25 HU on non-contrast computed tomography (CT) scan.

A CT 15-minute adrenal washout ...