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Pain in Both Knees

  • Ross Petty
  • Farhad Salehzadeh
Chapter

Abstract

  • Any child under the age of 16 years who has persistent arthritis for at least 6 weeks, satisfies criteria for juvenile idiopathic arthritis (JIA)

  • Involvement of 4 or more than 4 joints in the first 6 months after the appearance of symptoms indicates polyarthritic JIA, otherwise it would be oligoarticular JIA

  • Children with oligoarticular JIA, and positive ANA detected by a fluorescence assay are particularly susceptible to chronic asymptomatic anterior uveitis

  • Positive rheumatoid factor in children with polyartheritic JIA is associated with severe erosive arthritis and with progression to adult rheumatoid arthritis

Keywords

Juvenile idiopathic arthritis Anti-nuclear antibody Rheumatoid factor 

References

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Ross Petty
    • 1
  • Farhad Salehzadeh
    • 2
  1. 1.Pediatric RheumatologyUniversity of British ColumbiaVancouverCanada
  2. 2.Pediatric RheumatologyBouali Children’s Hospital, ARUMSArdabilIran

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