<prompt> Best way to localize extra-adrenal pheochromocytoma:-X-rayNucleotide scanVMA excretionClinical examination  <response>: IOC for extra adrenal pheochromocytoma is MRIMIBG scanaka-nucleotide scan Imaging MRI is IOC for adrenal, extra adrenal pheochromocytoma and in pregnancy MRI is 95 sensitive and 100 specific for pheochromocytoma CT scan should be performed without contrast administration to avoid hypeensive crisis. MIBG scan is useful for extra-adrenal pheochromocytoma but IOC is MRI even for extra adrenal pheochromocytoma. Biopsy is contraindicated as it precipitates hypeensive crisis 