Figure 6From: An excess vessel in the posterior part of the human cerebral arterial circle (CAC): a case series Comparison of external diameters of the pre-communicating part of carotid origin (PCA-P1c) and pre-communicating part of basilar origin (PCA-P1b) of the right posterior cerebral arteries, as well as the right ICoA between the one fetal and two adult cases.Back to article page