Hypertension Episodes of Adrenal Cortical Oncocytoma Mimicking Pheochromocytoma Attacks

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.