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JIA Subtypes

  • bnzy2003
  • Apr 26
  • 1 min read

Updated: 7 days ago



  • Oligoarticular JIA- Patients with Oligoarticular arthritis experience arthritis in less than four joints and a positive ANA.


  • Polyarticular JIA- Patients with Polyarticular arthritis experience arthritis in five or more joints in the first six months.


  • Systemic JIA- Patients with Systemic arthritis can experience other organ involvement, including spleen, lungs, heart, and lymph nodes.


  • Enthesitis-Related JIA- Patients with Enthesitis Related JIA have inflammation of the entheses, where tendons and ligaments attach to the bones. This type can also include ankylosing spondylitis and arthritis related irritable bowel disease.


  • Undifferentiated JIA- Patients who do not meet the criteria for one specific subtype, but have characteristics of serveral subtypes.

 
 
 

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​ Juvenile Rheumatoid arthritis is an autoimmune disease where the child’s bodily immune system fiercely attacks the joints, leading to inflammation, pain, burning, swelling, stiffness, and eventually losing the joints. It can result in swelling and limited range of motion in affected joints, making  normal everyday tasks challenging or even impossible for children wielding the chronic condition.

 In JIA, the immune system mistakenly targets the synovium, the lining of the joints, leading to joint damage over time. This chronic condition can affect multiple joints throughout the body, making daily activities challenging for those affected. Since there is no single definitive test for JIA, healthcare providers need to consider all these different pieces of information to make an accurate diagnosis. Blood tests can measure inflammatory markers and specific immune markers to help diagnose conditions like rheumatoid arthritis. In some cases, additional imaging studies such as X-rays or MRIs, as well as joint fluid analysis, may be needed to confirm the diagnosis.

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