Most sensitive test for diagnosing pheochromocytoma is :: (A) MRI, (B) 24 hour urinary xma, (C) MIBG scan, (D) Plasma free metanephrines
Answer is D. Plasma free metaneprines is the most sensitive test.
24 hour urinary VMA is used for screening.
MRI is the IOC for extraadrenal pheochromocytomos.