English: Dermatomyositis, Linear extensor erythema. Confluent erythema of the skin overlying the interphalangeal and extensor tendons of the hand, with extension to the forearm in a patient with dermatomyositis. Note the association with Gottron's sign. This is distinct from cutaneous lupus erythematosus, in which there is absence of erythema over the metacarpal and inter-phalangeal joints. Symmetric confluent macular erythema of the skin overlying the extensor tendon sheaths of the hands, forearms, thighs and/or feet in a patient with dermatomyositis.
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{{Information |Description={{en|1=Dermatomyositis, Linear extensor erythema. Confluent erythema of the skin overlying the interphalangeal and extensor tendons of the hand, with extension to the forearm in a patient with dermatomyos