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What are the three types of juvenile rheumatoid arthritis (JRA)?

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  • Pauciarticular juvenile rheumatoid arthritis (JRA) affects 4 or fewer joints. About 50% of children with JRA have it. It typically affects large joints like the knees.
  • About 30% of children with JRA have polyarticular disease, in which 5 or more joints are affected. Small joints, such as ones in the hands and feet, are typically involved.
  • Systemic JRA is marked by joint swelling, fever and a light rash, and it may also affect internal organs. This form affects 20% of children with JRA.

SOURCE: 

National Institute of Arthritis and Musculoskeletal and Skin Diseases.

Reviewed by David Zelman on January 30, 2019

SOURCE: 

National Institute of Arthritis and Musculoskeletal and Skin Diseases.

Reviewed by David Zelman on January 30, 2019

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What are some differences between juvenile rheumatoid arthritis (JRA) and adult arthritis?

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