Figure 1:

The uncus and its major supplying arteries. The uncus is the most medial an anterior part of the parahippocampal gyrus. It harbors many difficult mesial temporal lobe pathologies, such as arteriovenous malformations and tumors. The internal carotid, anterior choroidal, middle cerebral, and posterior cerebral arteries are the main trunks that provide blood supply to the uncus. In this medial view, we can identify these arteries and their syntopy. White arrow: Internal carotid artery; yellow arrow: Anterior choroidal artery; green arrow: Middle cerebral artery; black arrow: Posterior cerebral artery.