Article Text

Download PDFPDF
It is time to rethink juvenile idiopathic arthritis classification and nomenclature
  1. Alberto Martini
  1. Correspondence to Alberto Martini, University of Genoa, Pediatria II, Istituto G Gaslini, Largo Gaslini 5, Genova 16147, Italy; albertomartini{at}

Juvenile idiopathic arthritis (JIA) is not a disease, but an exclusion diagnosis that encompasses all forms of arthritis that begin before the age of 16 years, persist for more than 6 weeks, and are of unknown origin. This heterogeneous group of chronic arthritides has been classified on clinical and laboratory grounds to try to identify homogeneous, mutually exclusives categories suitable for etiopathogenic studies . Recent advances have shown that while some JIA categories identify quite definite disease entities, others still include heterogeneous conditions. Some aspects of JIA classification and nomenclature need therefore to be reconsidered.

Statistics from


  • Competing interests None.

  • Provenance and peer review Not commissioned; externally peer reviewed

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.