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Imaging in juvenile chronic arthritis

Department of Radiology, Great Ormond Street Hospital for Children, London WC1N 3JH, UK
Department of Rheumatology, Great Ormond Street Hospital for Children, London WC1N 3JH, UK

Summary

• 80% of children with JCA become symptomatic by the age of seven.
  
• Patients may present with a systemic illness with delayed onset of arthritis (Still's disease).
  
• The four major types of arthritis are Still's disease, oligoarthritis, polyarthritis and enthesitis arthritis.
  
• Plain films are usually sufficient for diagnosis and assessing progression.
  
• The degree of synovial hypertrophy and inflammation can be assessed with MRI and iv gadolinium.
  
• MRI has the potential of improving management by quantifying disease progression and response to treatment.