dermatomyositis, juvenile polymyositis, and myositis associated with another autoimmune
disease (overlap myositis). Idiopathic inflammatory myopathies manifest different
characteristics affecting children. Only a few investigations of childhood idiopathic
inflammatory myopathies were reported, involving 27 patients. In addition, clinical findings,
serum muscular enzyme levels, results of electromyography studies, muscle biopsy features …