회색질척수염의 병력이 있는 환자에서 발생한 근력 약화: 소아마비후증후군(Post-polio Syndrome)과 피부근염의 감별

저자들은 급성회색질척수염과거력이 있는 환자에서 새로 발생한 근육 위약이 소아마비후증후군으로 진단되었다가, 근육위약과 피부발진의 증상이 진행하여 피부근염으로 최종진단 후 고용량의 스테로이드와 면역억제제 사용으로 증상과 검사실 소견이 호전되었던 예를 경험하여 문헌고찰과 함께 보고하는 바이다. Dermatomyositis (DM) is an idiopathic inflammatory myopathy, characterized by inflammation of the proximal skeletal 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 having dermatomyositis, based on elevated muscle enzyme levels, typical skin rashes, and typical EMG findings, which indicated muscle disease. When a patient with previous poliomyelitis has a newly developed muscle weakness or pain, we should consider various possible causes other than PPS.