Gottron's sign

Etiology

• suggestive of polymyositis/dermatomyositis

Clinical manifestations

• a rash (poikiloderma) & purpura over the knuckles (dorsum of proximal interphalangeal joints & metacarpophalangeal joints)
• if rubbed, they become papular (Gottron's papules)

More general terms

• sign/symptom

Additional terms

• Gottron's papule
• poikiloderma