Basilar artery aneurysm with aplasia of internal carotid artery: A case presentation

IF 0.5 Q4 CLINICAL NEUROLOGY

Interdisciplinary Neurosurgery: Advanced Techniques and Case Management Pub Date : 2025-10-12 DOI:10.1016/j.inat.2025.102132

Kumpei Takao, Mitsuhiro Anan, Kouhei Onishi, Masaki Morishige, Nobuhiro Hata, Minoru Fujiki

引用次数: 0

Abstract

Background

Aplasia of the internal carotid artery (ICA) is rare. Patients with ICA aplasia are complicated with intercranial aneurysms due to hemodynamic factors more often than others, although they are asymptomatic.

Clinical presentation

We herein report a case of subarachnoid hemorrhaging due to a ruptured basilar artery (BA) aneurysm associated with congenital left ICA aplasia treated with endovascular therapy. The patient had been diagnosed with congenital ICA aplasia 15 years earlier; however, no aneurysm had been found at that time.

Conclusions

Hemodynamic factors associated with ICA aplasia may lead to de novo aneurysm formation. And also, wall share stress may lead to aneurysm formation.

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基底动脉动脉瘤伴颈内动脉发育不全1例

背景：颈内动脉发育不全是一种罕见的疾病。尽管ICA发育不全患者无症状，但由于血流动力学因素，其合并颅内动脉瘤的发生率高于其他患者。临床表现我们在此报告一例蛛网膜下腔出血的破裂的基底动脉（BA）动脉瘤合并先天性左ICA发育不全的治疗血管内治疗。患者在15年前被诊断为先天性ICA发育不全；然而，当时没有发现动脉瘤。结论与ICA发育不全相关的血流动力学因素可能导致新生动脉瘤形成。同时，壁面压力也会导致动脉瘤的形成。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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