A Persistent Primitive Hypoglossal Artery Arising from the External Carotid Artery Associated with Subarachnoid Hemorrhage

作者：He Shuhan^*; Russin Jonathan J; Adamczyk Peter; Giannotta Steven L; Amar Arun P; Mack William J

来源：World Neurosurgery, 2014, 82(1-2): UNSP 239.e1.

DOI：10.1016/j.wneu.2013.06.015

• Aneurysm
• External carotid
• Hypoglossal
• Persistent

BACKGROUND: A persistent primitive hypoglossal artery (PHA) is a rare congenital caroticobasilar anastomosis with a reported prevalence of 0.027%-0.26%. Intracranial aneurysms occur with a frequency of approximately 26% in the setting of PHAs.
CASE DESCRIPTION: PHAs typically originate from the proximal cervical internal carotid artery. To date, however, six cases of PHAs originating from the external carotid artery have been reported. We present the first case of a PHA originating from the external carotid artery associated with subarachnoid hemorrhage.
CONCLUSION: We review the literature and discuss anatomic implications with respect to the extreme lateral infrajugular transcondylar exposure for clip ligation of a ruptured posterior inferior cerebellar artery aneurysm in the setting of a PHA.

• 出版日期2014-8