A Case of Palisaded Neutrophilic and Granulomatous Dermatitis (Rheumatoid Papule) / 대한피부과학회지

Palisaded neutrophilic and granulomatous dermatitis is a newly described disease associated with connective tissue disorders, such as rheumatoid arthritis or lupus erythematousus. Cases associated with rheumatoid arthritis are also termed rheumatoid papules. We report a 27-year-old woman who presented with two erythematous, tender papules on her left elbow. She had rheumatoid arthritis and was being treated with an oral steroid, methotrexate and nonsteroidal antiinflammatory drugs. Histopathologic examination showed degenerative collagen with basophilic fibrinoid materials and neutrophils surrounded by palisaded epithelioid cells in the upper dermis.