text: A<unk>  <unk>  outside of the US) is a neuroendocrine tumor of the medulla of the adrenal glands (originating in the chromaffin cells) or extra-adrenal chromaffin tissue which failed to involute after birth, which secretes excessive amounts of catecholamines, usually epinephrine and norepinephrine.
  Extra-adrenal paragangliomas (often described as extra-adrenal<unk> s) are closely related, though less common, tumors that originate in the ganglia of the sympathetic nervous system and are named based upon the primary anatomical site of origin.
option_0: Pheochromocytoma echocardiography or ultrasound
option_1: Pheochromocytoma physical examination
option_2: Pheochromocytoma MRI
option_3: Warthin's tumor echocardiography or ultrasound
option_4: Pituitary apoplexy MRI
option_5: Pituitary adenoma MRI
option_6: Pituitary adenoma physical examination
option_7: Pheochromocytoma CT