Hi, what do you want to do?
JJ Medicine
Pheochromocytoma | Symptoms and Treatment
Lesson on Pheochromocytoma: Symptoms and Treatment. Pheochromocytoma is a medical condition caused by a catecholamine-secreting tumor formed by chromaffin cells within the adrenal medulla. This tumor secretes excessive amounts of...
Khan Academy
Khan Academy: Secondary Hypertension
The causes of secondary hypertension are known unlike primary hypertension where the causes are not known. Common diseases that lead to hypertension are renal diseases, pheochromocytoma, sleep apnea, and brain tumors.