Reactive neutrophilic dermatoses

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.

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