Juvenile idiopathic arthritis classification
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Classification
The 3 major types of JIA are oligoarticular JIA, polyarticular JIA and systemic JIA.
| JIA | |||||||||||||||||||||||||||||||||
| Oligoarticular JIA | Polyarticular JIA | Systemic JIA | |||||||||||||||||||||||||||||||
Oligoarticular (pauciarticular) JIA
Oligoarticular (or pauciarticular) JIA affects 4 or fewer joints. Oligo means few. It was previously known as pauciarticular JIA. Patients with oligoarticular JIA are more often ANA positive, when compared to other types of JIA.[1]
Polyarticular JIA
Affecting 5 or more joints in the first 6 months of disease. This subtype can include the affect of the neck and jaw as well as the small joints usually affected. This type of JIA is more common in small girls to that of boys.
Systemic JIA (Still's Disease)
Is characterized by arthritis, fever and a salmon pink rash. Systemic JIA can be challenging to diagnose because the fever and rash come and go. It affects males and females equally, unlike the other two subtypes of JIA.
Systemic JIA may have internal organ involvement and lead to serositis (e.g. pericarditis).
References
- ↑ "Uveitis and Anti Nuclear antibody Positivity in Children with Juvenile Idiopathic Arthritis". Indian Pediatr. 41 (10): 1035–1039. 2004. PMID 15523130.