Right vertebral artery arising from the extreme proximal right subclavian artery and entering the C3 transverse foramen diagnosed by magnetic resonance angiography.

IF 1.4 4区医学 Q2 Medicine

Surgical and Radiologic Anatomy Pub Date : 2025-03-25 DOI:10.1007/s00276-025-03621-z

Akira Uchino, Yuki Mukai

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引用次数: 0

Abstract

Purpose: To describe a case of right vertebral artery (VA) arising from the extreme proximal right subclavian artery (SA) and entering the C3 transverse foramen (TF), which was diagnosed by magnetic resonance angiography (MRA).

Methods: A 46-year-old woman with acute pontine infarction underwent MRA using a 3-Tesla scanner. MRA was performed using a standard 3-dimensional time-of-flight technique.

Results: MRA of the intracranial region revealed no pathological lesions. Fenestrations of the basilar artery were observed. MRA from the aortic arch (AA) to the craniovertebral junction level also showed no pathological lesions; however, there was a right VA arising from the extreme proximal right SA. The distance from the origin of the right SA to the origin of the right VA was 3 mm. The right VA entered the C3 TF.

Conclusion: The right VA rarely enters C3 TF, with a reported prevalence of approximately 0.1%. The right VA arises from the right SA at two types of points: a normal point of origin and an extremely proximal point of origin. The latter type is considered to result from the same embryonic developmental variation of the left VA arising from AA. Although the image quality of MRA at the level of AA is not as good as that of computed tomography angiography, careful observation of MRA and the creation of reformatted MRA images are important for the correct diagnosis of this rare variation.

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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.