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Felty's syndrome

Last edited: 4/16/2026

Overview

Felty's syndrome is a complication of long-standing rheumatoid arthritis characterized by the triad of rheumatoid arthritis, splenomegaly, and recurrent infections, often accompanied by cytopenias. 1

Diagnosis

  • Clinical Criteria: Presence of rheumatoid arthritis, splenomegaly, and at least one of the following: neutropenia, recurrent infections, or lymphadenopathy 1
  • Laboratory Tests: Positive rheumatoid factor, complete blood count (CBC) showing cytopenias (e.g., neutropenia, leukopenia) 1
  • Imaging: Ultrasound or CT scan to confirm splenomegaly 1

    • Management

  • First-Line Treatments:
    • - Splenectomy: Consider for severe neutropenia unresponsive to medical management 1
  • Adjunctive Treatments:
    • - Immunosuppressive Therapy: Use of disease-modifying antirheumatic drugs (DMARDs) such as methotrexate to control rheumatoid arthritis 1 - Antibiotics: Prophylactic or therapeutic use to manage and prevent infections 1

    Special Populations

  • Late Manifestations: Arthritis may develop later in the course of the disease, even without initial clinical signs 1

    • Key Recommendations

  • Evaluate for Felty's syndrome in patients with rheumatoid arthritis, splenomegaly, and recurrent infections or cytopenias (Evidence: Moderate 1)
  • Consider splenectomy for patients with severe neutropenia refractory to medical treatment (Evidence: Weak 1)
  • Initiate DMARD therapy to manage rheumatoid arthritis manifestations (Evidence: Expert opinion 1)

    • References

    1 Bradley JD, Pinals RS. Felty's syndrome presenting without arthritis. Clinical and experimental rheumatology 1983. link

    Original source

    1. [1]
      Felty's syndrome presenting without arthritis. — Bradley JD, Pinals RS Clinical and experimental rheumatology (1983)
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