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椎动脉V4段重复与发育不全伴小脑下前动脉重复：一例报告

Duplicated and Hypoplastic V4 Segment of Vertebral Artery along with Duplication of Anterior Inferior Cerebellar Artery: A Case Report.

作者信息

Rajasekhar S S S N, Aravindhan K, Tamgire Dharmaraj Wamanrao

机构信息

Assistant Professor, Department of Anatomy, JIPMER, Puducherry, India.

Additional Professor and Head, Department of Anatomy, JIPMER, Puducherry, India.

出版信息

J Clin Diagn Res. 2017 Aug;11(8):AD03-AD05. doi: 10.7860/JCDR/2017/29157.10366. Epub 2017 Aug 1.

DOI:10.7860/JCDR/2017/29157.10366
PMID:28969106
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5620746/
Abstract

Variations of V3 and V4 segments of Vertebral Artery (VA) are very rare. We report an extremely rare case of hypoplastic and duplicated V4 segment of right VA along with variant origin of right Anterior Inferior Cerebellar artery (AICA) from right Posterior Inferior Cerebellar artery (PICA). AICA was duplicated, with one vessel arising from PICA and another arising from distal Hypoplastic Vertebral Artery (HVA). HVA should be considered for the diagnosis of acute stroke of brainstem and cerebellum. Knowledge about VA variations is important to prevent iatrogenic injuries during surgeries involving posterior cranial fossa.

摘要

椎动脉（VA）V3和V4段的变异非常罕见。我们报告了一例极为罕见的右侧VA的V4段发育不全并重复，同时右侧小脑下前动脉（AICA）起源于右侧小脑下后动脉（PICA）的变异病例。AICA呈重复状，一支血管起源于PICA，另一支起源于远端发育不全的椎动脉（HVA）。在诊断脑干和小脑急性卒中时应考虑HVA。了解VA变异对于预防涉及后颅窝的手术中的医源性损伤很重要。

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