Most specific symptom of temporal aeritis?
High-Yield Explanation
Giant cell aeritis ( temporal aeritis ) is a chronic vasculitis of large and medium vessel aeries, usually affecting the cranial branches of aeries arising from aoic arch. Jaw claudication is an underrepoed, yet, a very specific symptom of GCA, with a high positive predictive value. Ref : Harrison's Principles of Internal medicine, 21st edition , Page 2188; NEJM, May 5, 2016, 1794-1795.