The posterior cerebral arteries branch off from the basilar artery. The left and right PCAs form the longest sections of the circle of Willis. The internal carotid arteries are located in the ...

Atherosclerotic carotid artery stenosis is relatively frequent in older patients and is a major cause of disabling stroke or death. Carotid endarterectomy is currently considered the standard of ...

The following case is unusual in that the occlusion was an embolus lodged at the carotid siphon that was removed six to eight hours after onset, with excellent reversal of the hemiparesis.