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Juvenile idiopathic arthritis

Disease definition

Juvenile idiopathic arthritis (JIA) is the term used to describe a group of inflammatory articular disorders of unknown cause that begin before the age of 16 and last over 6 weeks. The term juvenile idiopathic arthritis was chosen to signify the absence of any known mechanism underlying the disorder and to highlight the necessity of excluding other types of arthritis occurring in well defined diseases (in particular arthritis occurring in association with infectious, inflammatory and haematooncologic diseases).


  • Synonym(s):
    • Juvenile chronic arthritis
    • Juvenile rheumatoid arthritis
  • Prevalence: Unknown
  • Inheritance: -
  • Age of onset: Childhood
  • ICD-10: M08.0  M08.1  M08.2  M08.3  M08.4  M08.8  M08.9
  • OMIM: -
  • UMLS: C0553662  C1444838  C3495559
  • MeSH: D001171
  • GARD: -
  • MedDRA: 10059177
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