Abstract
Idiopathic inflammatory myopathies (IIM) are a heterogeneous group of chronic autoimmune diseases, systemic, associated with high morbidity and functional disability. Concerning to the clinical and histopathological features, the MII can be classified into polymyositis (PM), dermatomyositis (DM), juvenile dermatomyositis, myositis, a corpuscle, myositis associated with malignancy, and myo…