Myelolipoma with adrenocortical adenoma: an unusual combination that can resemble carcinoma.

Myelolipoma is a benign tumor that occurs in the adrenal gland and rarely in extra-adrenal sites. Commonly, it is diagnosed as an incidental finding. However, some reports indicate synchronous occurrence with other lesions including adrenocortical carcinoma. It has very rarely been reported to occur in association with adrenocortical adenoma. In this paper, we report three cases of adrenal myelolipoma associated with adrenocortical adenoma; in all three patients, the radiological appearance resembled adrenocortical carcinoma. These cases emphasize the importance of this combination as a pitfall in the correct diagnosis and management of patients with adrenal masses.