Which arteries are typically affected by giant cell arteritis (GCA) (temporal arteritis)?

Updated: Sep 10, 2020
  • Author: Mythili Seetharaman, MD; Chief Editor: Herbert S Diamond, MD  more...
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GCA is classified as a large-vessel vasculitis [4] but typically also involves medium and small arteries, particularly the superficial temporal arteries—hence the term temporal arteritis. In addition, GCA most commonly affects the ophthalmic, occipital, vertebral, posterior ciliary, and proximal vertebral arteries. Medium- and large-sized vessels that may be involved include the aorta and the carotid, subclavian, and iliac arteries. [5]

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