颞动脉炎是巨细胞性动脉炎的一种，巨细胞性动脉炎主要影响颈外动脉的分支，但有时也会影响主动脉弓和冠状动脉。在血管中膜可发现灶性肉芽肿。
Temporal arteritis is one manifestation of giant cell arteritis, which can affect mainly branches of external carotid artery, but sometimes also the great vessels at the aortic arch and coronaries. There is focal granulomatous inflammation of the media.