左椎动脉远端重复畸形伴右大脑后动脉开窗畸形。

Duplication of the distal end of the left vertebral artery with fenestration of the right posterior cerebral artery.

作者信息

Pleş Horia, Loukas Marios, Iacob Nicoleta, Andall Naomi R, Miclăuş Graţian Dragoslav, Tubbs R Shane, Matusz Petru

机构信息

Department of Anatomy, "Victor Babes" University of Medicine and Pharmacy, Timisoara, Romania;

出版信息

Rom J Morphol Embryol. 2015;56(2):575-7.

PMID:26193232

Abstract

The vertebrobasilar system (VBS) consists in the intracranial parts of the vertebral arteries (VAs), the basilar artery (BA) and its branches. The presence of a duplication at the level of the intracranial segment of VA (V4) is generally an incidental finding, but may be associated with aneurysms or arteriovenous malformations. We present an extremely rare case of duplication of the distal end of the left vertebral artery, associated with fenestration of the right posterior cerebral artery. The distal end of the left VA was duplicated into two arms (the right with a length of 5.5 mm and a diameter of 2.3 mm that connected with the contralateral VA; and the left with a length of 11.0 mm and a diameter of 1.6 mm, which connected more distally with the BA). The right posterior cerebral artery (PCA) had a fenestration in the posterior segment of the posterior communicating part (P2), with a length of 6.8 mm.

摘要

椎基底动脉系统（VBS）由椎动脉（VAs）的颅内部分、基底动脉（BA）及其分支组成。椎动脉颅内段（V4）水平出现重复通常是偶然发现，但可能与动脉瘤或动静脉畸形有关。我们报告了1例极其罕见的左椎动脉远端重复病例，同时合并右侧大脑后动脉开窗。左椎动脉远端重复为两支（右侧长5.5 mm，直径2.3 mm，与对侧椎动脉相连；左侧长11.0 mm，直径1.6 mm，在更远处与基底动脉相连）。右侧大脑后动脉（PCA）在后交通段（P2）的后段有一个长度为6.8 mm的开窗。