Most specific marker of pheochromocytoma:: (A) VMA, (B) Catecholamine, (C) 5 - HIAA, (D) Serotonim
Answer is A. Pheochromocytoma - tumor for Adrenal gland which secretes high amount of epinephrine & Nor-epinephrine catabolic products of catecholamine - VMA VMA can be measured in 24 hours urine sample