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Histiocytoid autoimmunity-related neutrophilic dermatosis in a patient with rheumatoid arthritis

  • Author(s): Paek, Jennifer;
  • Ho, Jonathan Dale;
  • Al-Haseni, Ali;
  • McGee, Jean;
  • Larson, Allison;
  • Bhawan, Jag
  • et al.
Abstract

Autoimmunity-associated neutrophilic dermatoses are a recently recognized manifestation of connective tissue diseases, in particular, lupus erythematosus. These entities are clinically and sometimes histopathologically distinct from classic neutrophilic dermatoses. We describe a case of an autoimmunity-related neutrophilic dermatosis in a patient with rheumatoid arthritis. In addition to this uncommon association, there was an absence of mature neutrophils and a population of immature histiocytoid granulocytes. This unusual case expands the concept of histiocytoid neutrophilic dermatoses to include those seen in association with autoimmune connective tissue diseases.

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