Rheumatoid neutrophilic dermatitis

Palisaded Neutrophilic Granulomatous Dermatitis, Bowel-Associated Dermatosis-Arthritis Syndrome, and Rheumatoid Neutrophilic Dermatitis

Neutrophilic dermatosis is a heterogeneous group of inflammatory skin diseases characterized by the presence of a sterile neutrophilic infiltrate on histopathology. Three specific types of neutrophilic dermatoses are reviewed in this article: palisaded neutrophilic granulomatous dermatitis, bowel-associated dermatosis-arthritis syndrome, and rheumatoid neutrophilic dermatitis. The authors review the literature and highlight the clinical and histopathological features, disease pathogenesis, and the association of these conditions with various systemic diseases such as rheumatoid arthritis, inflammatory bowel disease, and others. A multidisciplinary approach is necessary for the diagnosis and management of these inflammatory skin conditions.

Mohammed AG, Adam Essa ME, Abdalla Babker AE, Mohamed Abdelsatir A, Mohammed Elagib E. Neutrophilic dermatoses in a seronegative rheumatoid arthritis patient: A case report

Rheumatoid arthritis (RA) is a chronic inflammatory disease, characterized by symmetric and destructive polyarthritis with a broad-spectrum clinical manifestation of various organs. RND is an unusual distinctive manifestation of RA and typically develops in severe RA. This report aims to present an unusual and a rare neutrophilic skin condition, in a seronegative RA Sudanese patient. A 51-year-old woman was diagnosed with RA three years ago and a history of bilateral polyarthritis, presented with a skin rash involving her extremities and abdomen. Clinical examination of her skin revealed the presence of maculopapular lesions affecting the extensor surfaces of the lower extremities and the lower part of the abdomen with hyperpigmentation. Hand X-ray demonstrated periarticular osteopenia, and laboratory and immunological studies that include C-reactive protein, erythrocyte sedimentation rate (ESR), rheumatoid factor (RF), anticitrullinated peptide antibodies (ACPAs), and antinuclear factor in addition to skin biopsy were all suggested a diagnosis of neutrophilic dermatosis. The patient received steroids for the skin lesion still no significant improvement was seen, and then, cyclosporin 100 mg was administrated twice/ day with close monitoring, and two weeks later marked improvement was shown.