Bilateral Hypoplasia of the Posterior Communicating Artery: A Morphological Case Report

The Circle of Willis is linked to the vertebra-basilar system by an important posterior communicating artery (PCoA), and in case of internal carotid occlusion it acts as the sole source of blood supply to the cerebral hemispheres. External diameters have been used to determine hypo plasticity of these arteries with the normal diameter being above 0.5 mm. Hypo plasticity of the PCoA is a risk factor for ischemic infarctions in cases of internal carotid artery occlusion. In this article we present a rare case of hypo plastic bilateral posterior communicating arteries in a female cadaver. Hypo plasticity of the PCoA is an attributable factor to ischemic infarctions in cases of the internal carotid occlusion. Even when neurosurgery is a possibility, access is limited by the micro size of these arteries.