<unk>  is inflammation and damage to blood vessels that supply the head area, particularly the large or medium arteries that branch from the neck and supply the<unk>  area.
If the inflammation affects the arteries in your neck, upper body and arms, it is called giant cell arteritis.
Temporal arteritis
Takayasu's arteritis
Charcot-Bouchard aneurysm
Retinal migraine
Carotid artery dissection
Cavernous sinus thrombosis
Cluster headache
Cerebral vasculitis