Insuffisance rénale révélant un myélome multiple avec des lésions radiologiques historiques

The study involved a 54-year old female patient admitted with severe renal failure. She had a 1-month history of progressive stage II dyspnoea associated with chest pain, bone pain and anuria. Clinical examination showed hypertension (160/80mmHg), glomerular disease (urinary protein excretion 2+, blood 2+ and diuresis 300 cc). Pleuropulmonary examination showed diffuse bilateral lower-chest crackling sounds. Laboratory tests objectified severe renal failure with creatinine level 107mg, urea 1.65g/l, hyperkalaemia 7.8 mmol/l, CRP value 78mg/l, normochromic normocytic anemia with hemoglobin concentration 5.7g/dl and leukocytosis 13570 without thrombocytopenia, hyperprotidemia 144g/l, normal serum albumin concentration 33g/l, hypercalcemia 116mg/l and hyperphosphataemia 120mg/l. Serum protein electrophoresis showed monoclonal gamma globulin peak 60 g/l. Immunoelectrophoresis of plasma proteins showed IgG kappa gammapathy. Bence-Jones protein urine test was negative. Myelogram showed plasmocytosis 10%. Profile skull x-rays objectified multiple pre-existing geodes. The patient underwent CDT1 protocol with dexamethazone thalidomide 100 mg and oral endoxan.