Bilateral adrenal myelolipoma: A case report

Abstract

Myelolipoma is a relatively rare benign tumor composed of mature adipose tissue with variable amounts of hematopoietic element of both the myeloid and the erythroid series. It is usually asymptomatic, and bilateral tumors are unusual. The case is reported of a 62-yr-old male who presented with an ill-defined firm, non-tender, bimanually palpable mass in the right lumbar region, encroaching into right hypochondrium. It showed slight movement with respiration and was intraperitoneal. Contrast enhanced computed tomography (CECT) scan of the abdomen showed bilateral, heterogenous, hypoattenuating lesions with an enhancing rim of soft tissue in the adrenal fossae. At surgery the right sided tumor was treated by adrenalectomy and the left by enucleation of the tumor.

Conclusion: Bilateral myelolipoma of adrenal gland is a very rare entity and warrants careful evaluation, by abdominal CECT scan and fat suppressing magnetic resonance imaging (MRI).