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KMID : 1084220190260030211
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Journal of Rheumatic Diseases
2019 Volume.26 No. 3 p.211 ~ p.218
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Neuromyositis: A Rare Extramuscular Manifestation of Dermatomyositis
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Park Chan-Keol
Yoo Su-Jin
Yoo In-Seol
Kim Jin-Hyun
Shim Seung-Cheol
Kang Seong-Wook
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Abstract
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Dermatomyositis (DM) and polymyositis (PM) are representative idiopathic inflammatory myopathies characterized by symmetric and progressive proximal muscle weakness. Especially, DM is identified by characteristic skin lesions and has many extramuscular manifestations including various cardiac abnormalities, interstitial lung disease, and malignancy. However, involvement of peripheral nervous system in DM/PM is very rare and less known. The term “Neuromyositis” was introduced by Senator in 1893 to describe the concomitant involvement of the peripheral nervous system in DM/PM. Since then, a very few cases of neuromyositis have been reported mainly in the United States and Europe. Therefore, the pathogenetic mechanism and disease progression are unclear. In recent years, a few more cases were reported in Asia, specifically, China and Japan; however, none in Korea. Here, we describe a case of DM-associated neuromyositis in a 42-year-old man in Korea and review previous publications through literature research.
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KEYWORD
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Dermatomyositis, Peripheral nervous system diseases, Nerve conduction, Electromyography
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