All is true about Giant cell aeritis except ?

Ans. is 'c' i.e., Most commonly involved aery is abdominal aoao It is the most common form of systemic vasculitis in adults, is an acute and chronic, often granulomatous, inflammation of aeries of large to small size.o It affects principally the aeries in the head-especially the temporal aeries-- but also the veebral and ophthalmic aeries and the aoa, where it may cause thoracic aoic aneurysm