Overview Giant cell arteritis Most common vasculitis affecting medium and large arteries usually branches of carotid artery Focal, granulomatous inflammation Affects elderly females Symptoms unilateral headache jaw claudication impaired vision occlusion of ophthalmic artery that may lead to irreversible blindness Findings associated with an ↑ ESR half of patients have systemic involvement and polymyalgia rheumatica Treatment high-dose steroids Mnemonic TEMporal arteritis has signs near TEMples