Neutrophilic Urticarial Dermatosis
Neutrophilic urticarial dermatosis (NUD) was first described in 2009 by one of us  as an eruption consisting of rose or red macules or slightly elevated plaques vanishing within 24 h. The histopathologic findings are a dense perivascular and interstitial infiltrate of neutrophils with leucocytoclasia but without vasculitis.
- 4.Kolivras A, Theunis A, Ferster A, Lipsker D, Sass U, Dussart A, et al. Cryopyrin-associated periodic syndrome: an autoinflammatory disease manifested as neutrophilic urticarial dermatosis with additional perieccrine involvement. J Cutan Pathol. 2011;38:202–8.CrossRefPubMedPubMedCentralGoogle Scholar