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.
Image credits: Marvin 101. Licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. https://en.wikipedia.org/wiki/File:Cerebral_Giant-Cell_Vasculitis.jpg