RT Book, Section A1 de Guzman, Marietta M. A1 Wallace, Carol A. A1 Cabral, David A. A1 Sundel, Robert P. A2 Kline, Mark W. SR Print(0) ID 1182932218 T1 Juvenile Idiopathic Arthritis T2 Rudolph's Pediatrics, 23e YR 2018 FD 2018 PB McGraw-Hill Education PP New York, NY SN 9781259588594 LK accesspediatrics.mhmedical.com/content.aspx?aid=1182932218 RD 2024/10/08 AB Arthritis is a clinical finding of persistent joint swelling or painful restriction of joint movement. Arthralgia is pain in a joint, with or without inflammation. Thus, a patient with arthralgia will not necessarily have arthritis, nor does a patient with arthritis always have arthralgia. There are many causes of arthritis and arthralgia in children, and this section will be limited to the chronic arthritides of childhood that have no known cause.