The adrenal gland is affected in about 25% of patients with diffuse ly
mphoma. Conversely, primary lymphoma is a rare cause of non secreting
adrenal tumour. We observed a recent case with exclusive right adrenal
localization. An 84 year old woman was hospitalized for asthenia, ano
rexia and a 3-kg weight loss. The past history included coronary heart
disease. Physical examination was normal and the haemogramme revealed
pancytopenia. No lymphomatous infiltration was seen on the myelogramm
e or the bone marrow biopsy. Echography of the abdomen showed a well-l
imited 10 cm mass above the right adrenal gland, distinct from the liv
er; the left gland had a normal aspect. Hormone assays were within nor
mal limits. The right adrenal gland was removed surgically and histolo
gy revealed diffuse proliferation of medium to large sized lymphoid ce
lls invading the entire gland. Immunohistochemistry suggested lymphoid
B origin. No curative treatment was begun, but 2 months after surgery
local invasion required polychemotherapy. The patient died of septic
shock 5 days later. Serum cortisol measured during the septic shock el
iminated adrenal gland failure. Malignant primative non-Hodgkinien lym
phomas are extremely rare and usually discovered incidentally. The tum
our is always large and sometimes accompanied by adrenal insufficiency
when the lesion is bilateral. In spite of suggestive imagery the diag
nosis is based on the pathology examination. The lesion is usually a h
igh-grade malignant phenotype B lymphoma. Treatment relies on chemothe
rapy but is disappointing.