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Rheumatoid neutrophilic dermatitis

Last edited: 4/23/2026

Overview

Rheumatoid neutrophilic dermatitis (RND) is a rare dermatologic condition characterized by neutrophilic infiltration and granulomatous inflammation, often presenting with erythematous nodules and potentially overlapping with palisaded neutrophilic granulomatous dermatitis (PNGD) and leukocytoclastic vasculitis (LCV). 1

Diagnosis

  • Clinical Features: Erythematous nodules, particularly on extremities.
  • Histopathological Criteria: Palisaded granulomatous pattern with neutrophilic infiltration, sometimes concurrent with interstitial granulomatous pattern.
  • Recommended Tests: Histopathological examination of skin biopsy essential for diagnosis.
  • Differential Diagnosis: Consider conditions like interstitial granulomatous dermatitis (IGD) and LCV.
  • Exclusion of Underlying Disease: Evaluate for systemic diseases; transient liver function abnormalities may occur without definitive underlying disease. 1
  • Management

  • First-Line Treatments: Corticosteroids (specific dosing not detailed in abstracts).
  • Adjunctive Treatments: Immunosuppressive agents such as methotrexate or biologics (specific regimens not specified).
  • Monitoring: Regular follow-up to assess response and manage potential side effects.
  • Special Populations

  • No Specific Data: Limited information on pregnancy, pediatrics, elderly, or comorbidities in the provided abstracts. 1
  • Key Recommendations

  • Perform histopathological examination for definitive diagnosis of RND, including assessment for PNGD and LCV features. (Evidence: Moderate) 1
  • Consider systemic corticosteroids as initial therapy, adjusting based on clinical response and side effects. (Evidence: Expert opinion) 1
  • Evaluate for and exclude underlying systemic diseases despite clinical presentation suggesting otherwise. (Evidence: Moderate) 1
  • References

    1 Misago N, Shinoda Y, Tago M, Narisawa Y. Palisaded neutrophilic granulomatous dermatitis with leukocytoclastic vasculitis in a patient without any underlying systemic disease detected to date. Journal of cutaneous pathology 2010. link

    Original source

    1. [1]

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