Combined adrenal myelolipoma and medullary hyperplasia.

Objective: A patient is reported with hypertension due to combined medullary adrenal hyperplasia and myelolipoma.

Methods: A 52-year-old woman with long-standing hypertension was evaluated for an incidentally discovered large tumor of the left adrenal. Left adrenalectomy was performed for a presumptive clinical diagnosis of pheochromocytoma.

Results: Histopathologic examination revealed a mixed tumor consisting of a large myelolipoma with infiltrating foci of adrenal medulla.

Conclusions: A patient is described with hypertension, myelolipoma and adrenal medullary hyperplasia; following adrenalectomy, however, blood pressure and biochemical abnormalities normalized.