Anatomical Variations of the Circulus Arteriosus in Cadaveric Human Brains

Table 1

Morphological variations.

Variation type	Number of variations	Percentage %
Complete and normal CW	90	60
CW gross variations	60	40
Incomplete CW	16	10.66
ACoA	60	40
A1	21	14
PCoA	75	50
P1	21	14