[A case of primary non-Hodgkin lymphoma of the adrenal gland presenting with Addison's disease].

A 69-year-old male was admitted to our hospital complaining of skin pigmentation. Masses in bilateral adrenal glands were noted on computed tomography. An exploratory laparotomy revealed malignant lymphoma confined to the bilateral adrenal glands. Histological diagnosis was diffuse mixed-cell type, B-cell lymphoma. Laboratory tests disclosed an elevated ACTH level and decreased urinary 17KS and 170HCS secretion. Based on hypofunction of adrenal glands and skin pigmentation, the patient was diagnosed as having Addison's disease. After complete remission with combination chemotherapy, adrenal function recovered normal and pigmentation disappeared, Addison's disease is an extremely rare complication of primary malignant lymphoma of the adrenal gland.