Dermatomyositis (DM) is an inflammatory condition resulting in proximal myopathy, violaceous (heliotrope) inflammatory changes of the periorbital areas and the eyelids, erythematous urticarial ...

Lungs are the most common extra muscular organ involved in idiopathic inflammatory myopathies ... the metacarpophalangeal joints (MCPs) and proximal interphalangeal joints (PIPs).