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A Case of Chronic Pure Motor Neuropathy Associated with Anti-GalNAc-GD1a-IgM Antibody Akihiro Kanzaki 1 , Shiro Endo 2 , Susumu Kusunoki 3,5 , Junji Yoshinaga 1 , Yasushi Nakamura 1 , Teruo Shirabe 4 1Department of Neurology, Hiroshima City Hospital 2Department of Neuropsychiatry, Okayama University 3Department of Neurology, School of Medicine, The University of Tokyo 4Department of Neuropathology, Kawasaki Medical School Keyword: anti-GalNAc-GD1a antibody , anti-ganglioside antibody , pure motor neuropathy , mononeuritis multiplex , axonal degeneration pp.609-612
Published Date 2003/7/1
DOI https://doi.org/10.11477/mf.1406100513
  • Abstract
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The patient was a 34-year-old male with chronic pure motor neuropathy with such acute onset as seen in Guillain-Barré syndrome. Neurological symptoms were gradually progressive for 4 weeks, and predominantly noted in the left side. Deep reflexes were normal and the distribution of muscle weakness was uneven. Plasma exchange reduced neurological symptoms. Four weeks later, right drop foot was relapsed. High dose intravenous immunoglobulin was effective. Serial electrophysiological studies indicated the asymmetric reduction of CMAP. Repeated assays of anti-GalNAc-GD1a IgM antibody were positive. This is the first report of chronic pure motor neuropathy as multiple mononeuritic type associated with anti-GalNAc-GD1a IgM antibody. This case adds to our knowledge better understanding of the pathogenetic role of anti-GalNAc-GD1a IgM antibody in inflammatory neuropathies.


Copyright © 2003, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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