Abstract:

Congenital absence of the internal carotid artery (ICA) is a rare congenital developmental anomaly, which is often associated with carotid canal atresia and structural abnormalities of the ICA. It may be asymptomatic, or shows noticeable symptoms such as Horner syndrome, loss of visual field, trigeminal neuralgia, pulsing tinnitus, memory dysfunction/dementia, transient ischemic attack, intracranial aneurysm, subarachnoid hemorrhage, pituitary dysfunction, and developmental malformations in multiple organs. We reported a case of congenital absence of the left ICA with Horner syndrome, aneurysm, and secondary Parkinson's syndrome. Along with the retrospective analysis of diagnosis, treatment and disease progression of this case, a review of relevant literature was conducted, to improve the recognition of this rare complication.

Key words: Carotid artery diseases, Congenital absence of the internal carotid artery, Horner syndrome, Aneurysm, Parkinsonism, Case reports

摘要：

先天性颈内动脉缺失是一种罕见的先天性发育异常，常与颈动脉闭锁以及颈内动脉（ICA）相关结构异常有关。临床症状谱从无症状到Horner综合征、视野缺失、三叉神经痛、搏动性耳鸣、记忆力障碍/痴呆、短暂性脑缺血发作、颅内动脉瘤、蛛网膜下腔出血、垂体功能减退和多器官发育畸形等。本文报道了1例先天性左侧ICA缺失伴Horner综合征以及动脉瘤，并继发帕金森综合征的病例，回顾本例患者的诊治过程及疾病发展情况，并进行文献复习，以提高临床医生对这一罕见合并症的识别。

关键词: 颈动脉疾病, 先天性颈内动脉缺失, Horner综合征, 动脉瘤, 帕金森综合征, 病例报告