A CASE OF ADRENAL MYELOLIPOMA

Abstract

An asymptomatic 68-year-old man who had been pointed out cholecystolithiasis at the age of 65 was admitted to the hospital for close examination of the gallbladder. Abdominal ultrasonography (US) revealed multiple stones of the gallbladder and a left adrenal tumor lesion, measuring 27mm in diameter. This tumor had no enhanced effect at CT scan. MRI revealed a high signal tumor at both T1 and T2 weight imagings. With the diagnosis of cholelithiasis and the left adrenal tumor, a cholecystectomy and a left adrenalectomy were carried out. The section of the excised tumor was mainly dark reddish in color with a yellowish part within it. Histologically, the tumor was composed of bone marrow elements and mature fat cells other than adrenal components. Pathological diagnosis of the tumor was adrenal myelolipoma. A review of the literature on the adrenal myelolipoma, a rare non-functioning benign tumor, is also presented.