ILAR criteria
Also written as: ILAR — International League of Associations for Rheumatology
International League of Associations for Rheumatology classification system for juvenile idiopathic arthritis subtypes.
Full Definition
The ILAR criteria provide a standardized classification system for juvenile idiopathic arthritis, dividing it into seven distinct subtypes based on clinical features, laboratory findings, and genetic markers. Developed by the International League of Associations for Rheumatology, these criteria facilitate consistent diagnosis, research, and treatment approaches globally. The classification includes oligoarticular, polyarticular RF-positive, polyarticular RF-negative, systemic, enthesitis-related, psoriatic, and undifferentiated subtypes.
Usage
Usage note: Always specify 'ILAR criteria' rather than just 'classification criteria' for precision.
In Context
- "Diagnosis was established using ILAR criteria for oligoarticular juvenile idiopathic arthritis." — Diagnostic workup summary
- "The patient met ILAR criteria for systemic JIA based on fever pattern and rash." — Hospital discharge summary