This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pancreas, Subject name: Surgery
Idea of adrenal biopsy should be made after ruling out 
Select and explain. 
A. Adrenocortical carcinoma, B. Metastases, C. Pheochromocytoma, D. Cushing's syndrome
C: Pheochromocytoma
Answer: C: Pheochromocytoma 
Explanation: Ans. (c) PheochromocytomaRef: Bailey and love, 26th ed; pg. 779Adrenal gland biopsy* Never biopsy an adrenal mass until pheochromocytoma has been biochemically excluded* The indication for adrenal gland biopsy is to confirm adrenal gland metastasis