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.
Pheochromocytoma echocardiography or ultrasound
Pheochromocytoma physical examination
Pheochromocytoma MRI
Warthin's tumor echocardiography or ultrasound
Pituitary apoplexy MRI
Pituitary adenoma MRI
Pituitary adenoma physical examination
Pheochromocytoma CT