 Patients with Autosomal Dominant Polycystic Kidney Disease (ADPKD) are more likely to be subject to dolichoectasias.Dolichoectasias are most common in elderly males.In cases involving the basilar artery (VBD), pathology can occur due to direct compression of cranial nerves, by ischemia related to the dolichoectatic vessel, or by the development of hydrocephalus.