The clinical spectrum of dermatomyositis and the new autoantibodies - with regard to two clinical cases with distinct associations.

Dermatomyositis is a rare idiopathic inflammatory myopathy associated with different autoantibodies (anti-MDA5, anti-TIF1-gamma) which are linked with typical and distinct phenotypes of dermatomyositis. We describe two cases that illustrate these diverse cutaneous and systemic manifestations.