Objective: To describe an additional case of adrenocortical oncocytoma that had been incidentally discovered.
Methods/results: A case of adrenocortical oncocytoma in a 30-year-old male is presented. Patient evaluation by US, CT and arteriography revealed a well-defined mass between the upper pole of the left kidney, spleen and stomach, that appeared to be of adrenal origin. Histopathological and ultrastructural studies revealed a benign adrenocortical oncocytoma with moderate cell atypia but with no signs of infiltration.
Conclusion: Adrenocortical oncocytoma must be included in the differential diagnosis of solid adrenal tumors.