Reactive neutrophilic dermatoses are a spectrum of conditions mediated by neutrophils, and typically associated with underlying diseases, such as inflammatory bowel disease and hematologic malignancy.James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. .
Conditions considered to be reactive neutrophilic dermatoses include: Erythema nodosum Marshall syndrome Sweet syndrome (Acute febrile neutrophilic dermatosis) Neutrophilic dermatosis of the dorsal hands (Pustular vasculitis of the dorsal hands) Neutrophilic eccrine hidradenitis Pyoderma gangrenosum PAPA syndrome
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