Bilateral symptomatic adrenal myelolipoma.

Adrenal myelolipomas are rare, nonfunctioning benign tumors that consist of mature fat and bone-marrow elements. In the first half of this century, most adrenal myelolipomas were found incidentally at autopsy. These tumors are usually unilateral and asymptomatic. Today they are detected by ultrasonography, computerized tomography, or magnetic resonance imaging scan, done for other reasons. Adrenal myelolipomas can be diagnosed because of their characteristic images. Thus they are classified as "incidentalomas." We report the case of a 50-year-old man who had bilateral adrenal myelolipomas and whose right-side tumor was symptomatic. To our knowledge it is the third operated case reported in the literature. A right adrenalectomy was performed, keeping the asymptomatic left adrenal myelolipoma to preserve adrenal function.