[A case of adrenal myelolipoma]

A case of adrenal myelolipoma is presented. The patient was a 61-year-old woman who complained of lumbago this time. A tumor of the left adrenal gland, however, had been found by computed tomography 4 years earlier. Judging from the CT, the size of this tumor had not changed at all, although the density of the mass on admission had reduced, compared with that of 4 years earlier. Laboratory examinations of adrenal function was normal. Left adrenalectomy was performed. Histologically, this tumor consisted of adipose and some hematopoietic tissue. We reviewed 43 cases of adrenal myelolipoma resected surgically in Japan.