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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
The diagnostic procedure not done in case of pheochromocytoma –
assistant
The correct answer is  "Percutaneous fine-needle aspiration of chromaffin tumors is contraindicated; indeed, pheochromocytoma should be considered before adrenal lesions are aspirated." 
"Catastrophic hypertensive crisis and fatal cardiac arrhythmias can occur spontaneously or may be triggered by intravenous contrast dye or glucagon injection, needle biopsy of the mass, anesthesia, and surgical procedures."