A 55-year-old male with a history of type 2 diabetes and hypertension is found to have an incidental adrenal mass on an abdominal CT scan performed for unrelated abdominal pain. The mass measures 3 cm and is homogeneous. His blood pressure is well-controlled, and he denies symptoms of Cushing's syndrome, pheochromocytoma, or hyperaldosteronism. What is the most appropriate next step in the management of this adrenal incidentaloma?
✓ Correct Answer: Option C
Any adrenal incidentaloma requires a biochemical workup to rule out functional tumors, regardless of symptoms. This typically includes evaluation for Cushing's syndrome, pheochromocytoma, and hyperaldosteronism, as many are subclinical.