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Giant cell arteritis

Disease definition

Giant cell arteritis (GCA) is a large vessel vasculitis predominantly involving the arteries originating from the aortic arch and especially the extracranial branches of the carotid arteries.

ORPHA:397

  • Synonym(s):
    • Horton disease
    • Temporal arteritis
  • Prevalence: 1-5 / 10 000
  • Inheritance: Multigenic/multifactorial 
  • Age of onset: Adult
  • ICD-10: M31.6
  • OMIM: 187360
  • UMLS: C0039483  C1956391
  • MeSH: D013700
  • GARD: 9615
  • MedDRA: 10018250  10043207

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