Bilateral ICA agenesis is a rare developmental anomaly of the anterior circulation. It can be accompanied by various posterior circulation abnormalities including aneurysms, dolichoectatic vessels. We report the clinical presentation, imaging findings and management of a unique case of a 25 year old man having bilateral internal carotid agenesis with cerebellar ischemic lesions secondary to thrombus formation in dolichoectatic basilar artery.

中文翻译：

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双侧颈内动脉发育不全和后循环中风：罕见的协会。

双边ICA发育不全是一种罕见的前循环发育异常。它可能伴有各种后循环异常，包括动脉瘤，胆管切除血管。我们报告的临床表现，影像学发现和管理的25岁男子双侧内部颈动脉发育不全，继发于小肠直肠基底动脉血栓形成的小脑缺血性病变的一例。