Pathology Best for diagnosing pheochromocytoma is: September 2008 A Urinary catecholamines and their metabolites B Serum catecholamines and their metabolites C CT scan D Surgery 💡 Explanation Best for diagnosing pheochromocytoma is: September 2008 ✓ Correct Answer: A. Urinary catecholamines and their metabolites