system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Most specific marker of pheochromocytoma:
assistant
The correct answer is  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