Most specific symptom of temporal arteritis

Most specific symptom of temporal arteritis?
A. Visual loss
B. Jaw claudication
C. Temporal headache
D. Polymyalgia rheumatica

Correct answer : B. Jaw claudication

Histopathology of giant cell vasculitis (temporal arteritis) in a cerebral artery.

Giant cell arteritis ( temporal arteritis ) is a chronic vasculitis of large and medium vessel arteries, usually affecting the cranial branches of arteries arising from aortic arch.
Jaw claudication is an underreported, yet, a very specific symptom of GCA, with a high positive predictive value.

Ref : Harrison’s Principles of Internal medicine, 19th edition , Page 2188; NEJM, May 5, 2016, 1794-1795.

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