Hirahara K, Asakura T, Uetsuhara K
No Shinkei Geka. 1981 Feb;9(2):197-202.
A case of the persistent left primitive hypoglossal artery associated with an intracranial aneurysm was reported. The thirty-year-old man was admitted to hospital in the diagnosis of subarachnoid hemorrhage at seven days after the onset. Bilateral carotid angiograms revealed a saccular aneurysm at the right internal carotid-posterior communicating artery junction and a persistent left hypoglossal artery arising from the left internal carotid artery at the level of the C-1 vertebra. Retrograde vertebral angiograms revealed right hypoplastic vertebral artery (2mm in diameter) and markedly hypoplastic left vertebral artery, vanishing at the level of the C-3 vertebra. The axial view of the left carotid angiogram demonstrated the hypoglossal artery entered into the cranial cavity through the hypoglossal canal. Linear tomogram in the modified reversed Stenvers projection demonstrated the enlarged left hypoglossal canal measuring 9 X 10 mm. The normal right canal measured 5 X 6 mm. The right frontotemporal craniotomy was performed and the aneurysm was successfully clipped at its neck under an operative microscope. The patient discharged without any neurological deficit. The persistent hypoglossal artery is one of the persistent carotidbasilar anastomoses. Ninety-six cases of the hypoglossal arteries have been reported in literature. Twenty cases of them were associated with intracranial aneurysms. The authors reviewed these twenty cases and discussed the genesis of the intracranial congenital aneurysm in relation to the persistent artery.
报告了一例持续性左舌下动脉伴颅内动脉瘤的病例。该30岁男性在发病7天后因蛛网膜下腔出血诊断入院。双侧颈动脉血管造影显示右侧颈内动脉-后交通动脉交界处有一个囊状动脉瘤，以及一条持续性左舌下动脉，起源于C-1椎体水平的左颈内动脉。逆行椎动脉血管造影显示右侧椎动脉发育不全（直径2mm），左侧椎动脉明显发育不全，在C-3椎体水平消失。左颈动脉血管造影的轴位视图显示舌下动脉通过舌下神经管进入颅腔。改良反向斯滕弗斯投照的线性断层扫描显示左舌下神经管扩大，大小为9×10mm。正常右侧神经管大小为5×6mm。进行了右额颞开颅手术，并在手术显微镜下成功夹闭了动脉瘤颈部。患者出院时无任何神经功能缺损。持续性舌下动脉是持续性颈动脉-基底动脉吻合之一。文献中已报道96例舌下动脉病例。其中20例与颅内动脉瘤有关。作者回顾了这20例病例，并讨论了颅内先天性动脉瘤与持续性动脉的发生关系。
