Abstract
Dermatomyositis is distinctive among the family of idiopathic inflammatory myopathies as patients display a characteristic set of skin manifestations. The cutaneous findings, which can be subdivided into active lesions or those resulting from scarring, occur in particular anatomic distributions. In this chapter, the skin manifestations of dermatomyositis are discussed including facial erythema, “heliotrope” rash, “V sign,” “shawl sign,” “Gottron’s papules,” “Gottron’s sign,” “holster sign,” “mechanic’s hands,” “ragged” cuticles with nailfold changes, and calcinosis cutis. This chapter will also highlight the prevalence of these findings within the various myositis subtypes. An understanding of the protean cutaneous features of dermatomyositis is essential to accurately diagnose and treat this autoimmune disease.
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