Juvenile idiopathic arthritis

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.

Synonyms (terms occurring on more labels are shown first): juvenile rheumatoid arthritis, juvenile arthritis, JRA, juvenilearthritis, juvenile idiopathic arthritis, juvenile chronic arthritis, JIA

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