Les polyneuropathies avec IgM monoclonale anti-MAGÂ : étude descriptive clinique, biologique, électrophysiologique et anatomopathologique d'une cohorte de 13Â patients

MAG-PN have distinctive clinical, electrophysiological and pathological features. It is a chronic, slowly progressive, predominantly sensory and ataxic neuropathy. Disability is usually moderate. Electrophysiological study shows distal demyelinating process and is highly suggestive of MAG-PN in more than one half of our patients. Several techniques may detect anti-MAG antibodies, they have to be associated to improve sensitivity and specificity of the test.