Evidence map›Paper›PMID 40131500›Full record

ArticleSurgical and radiologic anatomy : SRA2025

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

Akira Uchino, Yuki Mukai

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In one paragraph

Article in Surgical and radiologic anatomy : SRA, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed
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1 · What the graph read from it

What it found

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

2 authors.

Akira UchinoDepartment of Radiology, Saitama Sekishinkai Hospital, 2-37-20 Irumagawa, Sayama, Saitama, 350-1305, Japan. auchino0528@gmail.com.
Yuki MukaiDepartment of Neurosurgery, Saitama Sekishinkai Hospital, 2-37-20 Irumagawa, Sayama, Saitama, 350-1305, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo 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).

methodsA 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.

resultsMRA 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.

conclusionThe 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.

Indexed as

Anatomic VariationSubclavian ArteryVertebral ArteryBrain Stem InfarctionsCervical VertebraeFemaleHumansImaging, Three-DimensionalMagnetic Resonance AngiographyMiddle AgedCerebral arterial variationsMagnetic resonance angiographySubclavian arteryTransverse foramenVertebral artery

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.