Catecholamine-secreting tumors
which are derived from chromaffin cells in adrenal medulla are called
pheochromocytoma. The ratio of pheochromocytoma in all hypertensive patients is less than 0.2%. Adrenal oncocytomas can mimic the clinical features of
pheochromocytoma. We aimed to present the findings of 2 patients with
adrenocortical oncocytoma resembling pheochromocytoma.