Noncontrast abdominal CT scan of 17-year-old male, showing a 5.4 × 3.3 cm right adrenal mass (arrow) with a HU value of 33.4, which was suggestive of a nonadenoma rather than an adrenal adenoma. This mass was confirmed by a pathological examination to be a right adrenal metastasis from a renal cell carcinoma.