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Hypertension episodes of adrenal cortical oncocytoma mimicking pheochromocytoma attacks.

Engin Onan, Saime Paydas, Emine Bagir, Seyda Erdogan, Tamer Tetiker, Yasemin Aydinalp, Gizem Varkal, Mehmet Celalettin Guneri

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.