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Abstract：
Neutrophilic urticarial dermatosis (NUD) is a rare form of dermatosis. In clinical terms, it consists of a chronic or recurrent eruption comprising slightly elevated, pink to reddish plaques or macules. The elementary lesion lasts 24 to 48hours and resolves without leaving any residual pigmentation. Extra-cutaneous signs are common, particularly fever or arthralgia. At histopathology, the dermis contains dense neutrophilic interstitial infiltrate with leukocytoclasis, but without fibrinoid necrosis of vessel walls. NUD often occurs in a setting of underlying systemic disease. The most commonly associated diseases are adult-onset Still\'s disease, Schnitzler syndrome, lupus erythematosus and cryopyrin-associated periodic syndromes. Treatment of NUD depends on the clinical context. Dapsone and colchicine are often effective.
摘要：
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