Anatomical Variations of the Circulus Arteriosus in Cadaveric Human Brains

Table 3

Symmetry of different components of CW.

Segment of CW	Symmetrical	Asymmetrical
A1	103 (68.66%)	47 (31.33%)
PCoA	93 (62%)	57 (38%)
P1	116 (77.33%)	34 (22.66%)