Saturday, June 21, 2014


Pheochromocytoma is a benign tumor that develops either in the cortical layers of the adrenal glands (adrenal medulla) or in the sympathetic ganglia. The cells of these tumor cause an excessive secretion of norepinephrine or adrenaline; as a result the patient can experience tachycardia and increased blood pressure. Since it is a tumor that affects only the chromaffin cells of the adrenal medulla, pheochromocytoma does not spread into other body tissues. This medical condition usually affects teenagers and young adults.