Palisaded neutrophilic granulomatous dermatitis associated with systemic lupus erythematosus presenting with the burning rope sign

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Palisaded neutrophilic granulomatous dermatitis is a rare but increasingly recognized cutaneous manifestation of connective tissue disorders. It is reported most commonly with rheumatoid arthritis but also occasionally in association with systemic lupus erythematosus, inflammatory bowel disease, lymphoproliferative disorders, and systemic vasculitides. The clinicopathological presentation is highly variable, which has led to suggestions that it encompasses a number of distinct diseases. Most previous cases have reported only a single clinical and histologic manifestation of the condition within an individual. Here, we present a case of systemic lupus erythematosus-associated palisaded neutrophilic granulomatous dermatitis in which a striking evolution of both clinical and histologic features was observed during the course of 7 years, providing compelling evidence for the proposal that palisaded neutrophilic granulomatous dermatitis represents a disease spectrum rather than separate disease entities.