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KMID : 0388220140210030147
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Journal of the Korean Rheumatism Association
2014 Volume.21 No. 3 p.147 ~ p.150
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Muscle Weakness in a Patient with History of Poliomyelitis:A Differential Diagnosis for Post-polio Syndrome (PPS) and Dermatomyositis
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An Sang-Hee
Na Ha-Young
Kang Seong-Hui
Park Soo-Youn
Yu Hyung-Min
Lim Chae-Ho
Kim Ji-Wan
Kwon Se-Woong
Lee Jung-Hwa
Kim Hae-Rim
Lee Sang-Heon
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Abstract
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Dermatomyositis (DM) is an idiopathic inflammatory myo-pathy, characterized by inflammation of the proximal skel-etal muscles and typical skin manifestations, which results in symmetric muscle weakness. A 43- year-old man was presented with skin rash and left leg weakness, and he had a history of poliomyelitis. Initially, he was diagnosed as having post-polio syndrome (PPS) due to unilateral muscle weakness and a result of an the electromyography (EMG), which had shown patterns of PPS. After 4 months with conservative therapy for PPS, weakness of bilateral upper arms had developed and skin rashes on his entire body had aggravated and progressed. He was diagnosed as hav-ing dermatomyositis, based on elevated muscle enzyme lev-els, typical skin rashes, and typical EMG findings, which indicated muscle disease. When a patient with previous po-liomyelitis has a newly developed muscle weakness or pain, we should consider various possible causes other than PPS.
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KEYWORD
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Dermatomyositis, Post-polio syndrome, Poliomyelitis, Skin rash, Muscle weakness
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