Primary adrenal lymphoma presenting as Addison's disease. Case report and review of the literature.

Primary Adrenal Lymphoma (PAL) is a very rare clinical entity. Adrenal insufficiency is a common complication of this pathology. Most patients present with clinical and laboratory findings of adrenal insufficiency and bilateral enlargement of the adrenal glands. We present a 78-year-old woman admitted to our institution with typical clinical and laboratory findings of adrenal insufficiency. Computerized tomography (CT) of the abdomen revealed bilateral enlargement of the adrenal glands. The patient was eventually diagnosed with a diffuse large B-cell lymphoma after a CT-guided needle adrenal biopsy and treated with combined immuno-chemotherapy (R-LPD-COP). Twenty months after the initial evaluation, she is in good condition, with no signs of adrenal insufficiency.