Variations of the Posterior Communicating Artery (PCoA), Proximal Posterior Cerebral Artery (PCA), and Anterior Choroidal Artery (AChA)

This chapter includes (1) P1 aplasia and hypoplasia of the PCA (Fetal-type PCA), (2) Extremely long PCoA and P1 segment of the PCA, (3) Duplicate origin of the PCoA, (4) PCA branch arising from the PCoA, (5) Hyperplastic AChA (Accessory PCA, Replaced PCA), (6) Duplication of the PCA, (7) Duplicate origin of the PCA, (8) Fenestration of the PCA, (9) Early bifurcation of the PCA, (10) Artery of Percheron, and (11) Infundibular dilatation of the PCoA, AChA and hypoplastic P1 segment of the PCA. There are 21 figures and 2 illustrations.