Les neuropathies des gammapathies monoclonales

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Abstract
Five cases of peripheral neuropathies occurring with monoclonal gammapathies are studied by means of nerve biopsies. Immunofluorescence and HRP-immunolabelling with the electron microscope are performed. The direct pathogenic role of a subperineurial immunoglobulin deposit is pointed out. The relationship of the heavy chain monoclonal immunoglobulin with amyloid fibrils is discussed.