- Gottron sign
- A scaly, patchy redness over the knuckles seen in patients with dermatomyositis, an inflammatory muscle disorder. (See polymyositis).
* * *a cutaneous sign pathognomonic of dermatomyositis, consisting of symmetrical macular violaceous erythema, with or without edema, over extensor surfaces such as the knuckles, elbows, or knees.
Medical dictionary. 2011.
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