Investigation of choice in pheochromocytomais-: (A) CTscan, (B) Urinary catecholamines, (C) MlBGscan, (D) Urinary calcium measurement
Answer is B. Pheochromocytoma synthesize and store catecholamines. Elevated plasma and urinary levels of catecholamines are impoant for diagnosis Ref -( Harrison 17 pg 2270)