Gottron's papules


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Related to Gottron's papules: dermatomyositis, shawl sign, heliotrope rash, Gottron's sign

Gottron's papules

[Gottron, H.A., Ger. dermatologist, 1890–1974]
Faint red or violet papules occurring over the knuckles and sometimes the interphalangeal joints in patients with dermatomyositis. This sign is diagnostic of the illness.
References in periodicals archive ?
And the classic violaceous Gottron's papules found only over the knuckles are tough to detect in darker skinned patients.
Gottron's sign: nonscaling, violaceous erythematous macules and plaques occurring symmetrically in the same distribution as Gottron's papules, but with sparing of the interphalangeal spaces.
Pathognomonic findings include Gottron's papules, which are slightly elevated violaceous papules located over the joints of the hands, as well as over the ankles, knees, and elbows, and Gottron's sign, which refers to the erythematous plaques that spare the interphalangeal spaces.