[Monoclonal gammopathy in HIV infection].

A lambda-light chain-IgA plasmocytoma, accompanied by a changing clinical picture of fever, nocturnal perspirations and weight loss, developed in a 46-year-old homosexual male with AIDS, stage IV (classification according to the Centers for Disease Control). He had been suffering from recurrent Salmonella septicaemia. Serum protein electrophoresis demonstrated marked elevation of the beta- and gamma-fractions (44% and 24%, respectively). There were 15% plasma cells in the differential blood count and in the bone marrow smear. Immunoelectrophoresis demonstrated free lambda-light chains. The IgA concentration in cerebrospinal fluid was raised to 202 mg/l, and there was an IgA paraproteinaemia. The patient died during a recurrence of the Salmonella septicaemia from septic cardiovascular failure.