筋炎の皮膚病変とその治療

抄録

Idiopathic inflammatory myopathies have traditionally been classified as dermatomyositis, polymyositis, as well as inclusion body myositis and overlapping myositis. Recently new disease eintities have also been proposed due to advances in research on disease–specific autoantibodies. Dermatomyositis has been defined by the presence of myositis and characteristic skin lesions. The skin lesions of dermatomyositis include pathognomonic rash included in the classification criteria, characteristic rash, and other skin lesions that are not disease–specific but are useful for diagnosis. Treatment of dermatomyositis skin lesions includes topical and systemic therapies, and novel therapies are emerging.