Anatomic variation of the vertebral artery: a case involving a persistent first intersegmental artery at C1-C2.

IF 1.4 4区医学 Q2 Medicine

Surgical and Radiologic Anatomy Pub Date : 2024-11-01 Epub Date: 2024-09-19 DOI:10.1007/s00276-024-03483-x

Tao Zeng, Jinsheng Qiao, Changrui Su, Yixuan Zeng, Guodong Sun, Zhenhua Dang, Guohong Zhang, Wenlong Tang

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引用次数: 0

Abstract

Background: We observed a rare anatomical variation of a persistent first intersegmental vertebral artery in the C1-C2 region in an elderly Chinese male cadaver at Changzhi Medical College. In this case, the vertebral artery, rather than passing through the transverse foramen of the atlas, exits the transverse foramen of C2 and enters the spinal canal at the lower portion of the C1 posterior arch. The original transverse foramen of C1 was filled with connective tissue. This report details the anatomical characteristics of this abnormal vertebral artery and discusses its anatomical, surgical, and developmental implications.

Purpose: We describe the detailed morphological features of a rare VA variant and discuss the anatomical, clinical, and developmental aspects of this case.

Methods: A case of head dissection. The anatomical characteristics of the VA were studied and documented, and anatomical measurements were collected.

Results: In this case, the vertebral artery, rather than passing through the transverse foramen of the atlas, exits the transverse foramen of C2 and enters the spinal canal at the lower portion of the C1 posterior arch. The original transverse foramen of C1 was filled with connective tissue.

Conclusion: The anomalous development of segmental arteries in our case is linked to failures in the embryonic sclerotome reconstruction during development and failure.

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椎动脉的解剖变异：一例涉及 C1-C2 处持续存在的第一节间动脉的病例。

背景：我们在长治医学院的一具中国男性老年尸体上观察到了一种罕见的解剖变异，即C1-C2区的第一节段间椎动脉持续存在。在这个病例中，椎动脉没有穿过寰椎横突孔，而是从 C2 横突孔流出，在 C1 后弓下部进入椎管。原来的 C1 横孔被结缔组织填充。本报告详细描述了这一异常椎动脉的解剖学特征，并讨论了其在解剖学、外科和发育方面的影响。目的：我们描述了一例罕见的椎动脉变异的详细形态特征，并讨论了该病例在解剖学、临床和发育方面的问题：方法：一例头部解剖病例。研究并记录了VA的解剖特征，并收集了解剖测量数据：在该病例中，椎动脉没有穿过寰椎横突孔，而是从 C2 横突孔流出，在 C1 后弓下部进入椎管。原来的C1横孔被结缔组织填满：结论：我们病例中节段动脉的异常发育与胚胎硬膜在发育和失败过程中的重建失败有关。

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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来源期刊

Surgical and Radiologic Anatomy Medicine-Pathology and Forensic Medicine

CiteScore

2.40

自引率

14.30%

发文量

期刊介绍： Anatomy is a morphological science which cannot fail to interest the clinician. The practical application of anatomical research to clinical problems necessitates special adaptation and selectivity in choosing from numerous international works. Although there is a tendency to believe that meaningful advances in anatomy are unlikely, constant revision is necessary. Surgical and Radiologic Anatomy, the first international journal of Clinical anatomy has been created in this spirit. Its goal is to serve clinicians, regardless of speciality-physicians, surgeons, radiologists or other specialists-as an indispensable aid with which they can improve their knowledge of anatomy. Each issue includes: Original papers, review articles, articles on the anatomical bases of medical, surgical and radiological techniques, articles of normal radiologic anatomy, brief reviews of anatomical publications of clinical interest. Particular attention is given to high quality illustrations, which are indispensable for a better understanding of anatomical problems. Surgical and Radiologic Anatomy is a journal written by anatomists for clinicians with a special interest in anatomy.