The only syndrome in this category is produced by pheochromocytomas. Pheochromocytoma is a tumor of the adrenal medulla that frequently secretes epinephrine or norepinephrine. This causes hypertension, which may be continuous (about 30% of patients) or in short episodes (paroxysmal). Although rare, pheochromocytoma is one of the few curable causes of hypertension and so should […]