Rosen I W, Mills D F, Nadel H I, Kaiserman D D
J Neurosurg. 1975 Apr;42(4):478-82. doi: 10.3171/jns.1975.42.4.0478.
The authors present angiographic demonstration of bilateral, congenital, total absence of the internal carotid arteries in a patient with subarachnoid hemorrhage. Angiography demonstrated complete absence of both internal carotid arteries. The intracranial blood supply had been provided by communication between a hypertrophied basilar artery and the circle of Willis through the posterior communicating arteries. An aneurysm, believed to be the site of the subarachnoid hemorrhage, arose from the basilar artery. Absence of the carotid canals substantiated the congenital nature of the anomaly. The related embryology is reviewed.
作者展示了一名蛛网膜下腔出血患者双侧先天性颈内动脉完全缺如的血管造影表现。血管造影显示双侧颈内动脉完全缺如。颅内血液供应由增粗的基底动脉通过后交通动脉与 Willis 环之间的交通提供。一个动脉瘤被认为是蛛网膜下腔出血的部位，它起源于基底动脉。颈动脉管缺如证实了该异常的先天性本质。文中对相关胚胎学进行了回顾。
