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Ann Clin Neurophysiol > Volume 20(2); 2018 > Article
Ann Clin Neurophysiol. 2018; 20(2): 101-104.
Published online July 31, 2018.
doi: https://doi.org/10.14253/acn.2018.20.2.101
Electrophysiological and radiological evidence for the multifocal nature of a case of multifocal acquired demyelinating sensory and motor neuropathy
Gi-Hun Seong1, Jong Seok Bae2, and Sanghyo Ryu3
1Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, Korea
2Department of Neurology, Kangdong Sacred Heart Hospital, Seoul, Korea
3Department of Neurology, Haedong Hospital, Busan, Korea
Corresponding Author: Sanghyo Ryu ,Tel: +82-51-410-6300, Fax: +82-51-413-7764, Email: sanghyoryu@gmail.com
Received June 18, 2018   Revised: July 4, 2018    Accepted July 4, 2018
Multifocal acquired demyelinating sensory and motor (MADSAM) neuropathy is a variant of chronic acquired demyelinating polyneuropathy. A 65-year-old women presented with upper arm weakness. A nerve conduction study showed conduction blocks over intermediate segments with sparing of distal compound action potentials. Magnetic resonance imaging revealed asymmetric hypertrophy of the brachial plexus on the affected side. These findings represent important electrophysiological and radiological evidence of MADSAM neuropathy. The condition of the patient began to improve after starting intravenous immunoglobulin administration.
Key words: Polyneuropathy, Chronic inflammatory demyelinating; Neural conduction; Magnetic resonance imaging
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