Circle of Willis Variants: Fetal PCA

Table 3

Vascular involvement of the stroke in patients without fetal PCA (no fPCA), partial fetal PCA (pfPCA), and complete fetal PCA (cfPCA).

	No fPCA	pfPCA	cfPCA	𝑃 value
	𝑁=387	𝑛=78	𝑛=48
MCA involved in the stroke	269 (69.5%)	52 (66.7%)	36 (75.0%)	0.613
PCA involved in the stroke	54 (14.0%)	7 (9.0%)	8 (16.7%)	0.396
Posterior circulation involvement	68 (17.6%)	16 (20.5%)	11 (22.9%)	0.591