title: Chronic demyelinating neuropathy with IgM-producing lymphocytes in peripheral nerve and delayed appearance of "benign" monoclonal gammopathy.
abstract: A chronic demyelinating neuropathy with "benign" IgM gammopathy was followed for 6 years in a 63-year-old man. The clinical, biologic, and EMG aspects were similar to those already reported, but a lymphoplasmocytic infiltrate in the nerve connective tissue of this patient has only rarely been observed in benign IgM gammopathy. The paraprotein was not evident in the serum until 5 years after symptoms of the neuropathy started.
mesh_terms: D003711:Demyelinating Diseases / Q000097:blood / Q000276:immunology / Q000473:pathology*; D006801:Humans; D006942:Hypergammaglobulinemia / Q000473:pathology*; D007075:Immunoglobulin M / Q000276:immunology; D008214:Lymphocytes / Q000276:immunology*; D008297:Male; D008875:Middle Aged; D010523:Peripheral Nervous System Diseases / Q000097:blood / Q000276:immunology / Q000473:pathology*
chemical_list: D007075:Immunoglobulin M