Polyarticular juvenile idiopathic arthritis (JIA), also known as
polyarthritis, affects 5 or more joints during the first 6 months of
symptoms. This type of JIA is more severe than oligoarticular JIA,
because it affects more joints and tends to get worse over
Polyarticular JIA often begins in large joints, such as the knee or
hip, but may start in the small joints of the hands and fingers. It also may
affect the knees, ankles, feet, neck, and jaw.
Polyarticular JIA is divided into two groups.
Symptoms of polyarticular JIA usually affect the same joints on
both sides of the body, such as the joints of both hands. A child with
polyarthritis may also develop:
June 5, 2012
Susan C. Kim, MD - Pediatrics & John Pope, MD - Pediatrics
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