Pheochromocytoma is a disease caused by a benign or malignant tumor of adrenal tissue. Pheochromocytoma, or chromaffin tumors secrete catecholamines and accumulate and often arise in the adrenal medulla.
Pheochromocytoma – Causes, Symptoms, Diagnosis, Treatment and Ongoing care - Catecholamine-producing tumor. In 90% of cases, the tumors are found in the adrenal medulla, but they may also be found in other tissues derived from the neural crest cells. Read more: http://health.tipsdiscover.com/pheochromocytoma-causes-symptoms-diagnosis-treatment-ongoing-care/#ixzz2lYHJalIL