{Reference Type}: Journal Article {Title}: Neutrophilic urticarial dermatosis: A review. {Author}: Gusdorf L;Lipsker D; {Journal}: Ann Dermatol Venereol {Volume}: 145 {Issue}: 12 {Year}: Dec 2018 {Factor}: 0.934 {DOI}: 10.1016/j.annder.2018.06.010 {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.