Canadian Medical Guide > Diseases > Musculoskeletal Diseases > Joint Diseases > Arthritis > Arthritis, Rheumatoid > Arthritis, Juvenile Rheumatoid Terms and Definitions

Arthritis, Juvenile Rheumatoid

Medical Definition:	Rheumatoid arthritis of children occurring in three major subtypes defined by the symptoms present during the first six months following onset: systemic-onset (Still's Disease, Juvenile-Onset) polyarticular-onset, and pauciarticular-onset. Adult-onset cases of Still's disease (STILL'S DISEASE, ADULT-ONSET) are also known. Only one subtype of juvenile rheumatoid arthritis (polyarticular-onset, rheumatoid factor-positive) clinically resembles adult rheumatoid arthritis and is considered its childhood equivalent.
Guide Notes:	for subtypes read MeSH definition; do not confuse X ref STILL'S DISEASE, JUVENILE-ONSET with STILL'S DISEASE, ADULT-ONSET
Also Called:	Juvenile-Onset Still Disease

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