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Ann Clin Neurophysiol > Volume 3(1); 2001 > Article
Ann Clin Neurophysiol. 2001; 3(1): 1-8.
Distal Myopathies
Dong Kuck Lee
Copyright © 2001 The Korean Society of Clinical Neurophysiology
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
The distal myopathies(DM) are clinically defined as inherited or sporadic primary muscle disorders characterized by progressive muscular weakness and atrophy beginning in the hands or feet and pathologically by myopathic changed in skeletal muscle. The pathologic changes are somewhat similar to those seen in chronic muscular dystrophy, but necrotic and regenerative processes are less prominent and creatine kinase levels are either normal or only mildly elevated. The most representative disease are dominantly inherited Welander distal myopathy and tibial muscular dystrophy, and the recessively inherited distal myopathy with rimmed vacuoles and distal muscular dystrophy(Miyoshimyopathy). At present, further study is necessary to determine why rimmed vacuoles are so common in the DM and what role they play in the pathogenesis of muscle fiber atrophy and loss, predominantly in the distal portions of the extremities.
Key words: Distal myopathies, Muscular dystrophy, Rimmed vacuoles
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