Study of Posterior Cerebral Artery in XXXX Cadaveric Brain.

@entity1 @entity5546 @entity509 @entity439 @entity6455 @entity3894
Objective. Basilar artery (BA) terminates in right and left posterior cerebral arteries (PCAs). Each @entity5546 supplies respective occipital lobe of the cerebrum. The present study is designed to know the morphology, morphometry, branching pattern, and symmetry of @entity5546 . Methods. The study included 340 PCAs dissected from 170 @entity1 cadaveric brains. Results. Morphological variations of P1 segment included, @entity3894 (2.35%), @entity509 (5.29%), duplication (2.35%), fenestration (1.17%), and common trunk shared with SCA (1.76%). Morphological variations of origin of P2 segment included direct origin of it from BA (1.17%) and @entity6455 (2.35%). Unusually, two P2 segments, each arising separately from BA and @entity6455 , were observed in 1.17%. Unilateral two P2 segments from CW were found in 0.58%. Morphological variations of course of P2 were duplication (0.58%), fenestration (0.58%), and @entity439 (1.76%). Unilateral P2 either adult or fetal was seen in 4.71%. The group II branching pattern was found to be most common. Asymmetry of P2 was 40%. Morphometry of P2 revealed mean length of 52   mm and mean diameter of 2.7   mm. Conclusion. The present study provides the complete anatomical description of @entity5546 regarding morphology, morphometry, symmetry, and its branching pattern. Awareness of these variations is likely to be useful in cerebrovascular procedures.
