Unilateral segmental agenesis of the vertebral artery at the C2 level

Philippe Gailloud; Ayushi Gautam; Justin Caplan

doi:10.1007/s00276-019-02357-x

Unilateral segmental agenesis of the vertebral artery at the C2 level

Philippe Gailloud, Ayushi Gautam, Justin Caplan

School of Medicine

Research output: Contribution to journal › Article › peer-review

Abstract

Purpose: To report a case of unilateral segmental agenesis of the vertebral artery (VA). Methods: We describe the angiographic and MRI features of a segmental VA agenesis (C2 segment). Results: VA agenesis is caused by the absence of the anastomotic connection normally linking two adjacent intersegmental arteries; in the reported observation, a paravertebral extraforaminal anastomosis replaced the C2 segment normally joining the 1st and 2nd cervical intersegmental arteries through the C2 transverse foramen. Conclusion: We present an observation of segmental VA agenesis. This variant is consistent with the developmental history of the VA. It appears exceptional but is more likely underappreciated.

Original language	English (US)
Pages (from-to)	189-192
Number of pages	4
Journal	Surgical and Radiologic Anatomy
Volume	42
Issue number	2
DOIs	https://doi.org/10.1007/s00276-019-02357-x
State	Published - Feb 1 2020

Keywords

Anatomical variation
Angiography
Arteries
Vertebral artery

ASJC Scopus subject areas

Anatomy
Surgery
Pathology and Forensic Medicine
Radiology Nuclear Medicine and imaging

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10.1007/s00276-019-02357-x

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title = "Unilateral segmental agenesis of the vertebral artery at the C2 level",

abstract = "Purpose: To report a case of unilateral segmental agenesis of the vertebral artery (VA). Methods: We describe the angiographic and MRI features of a segmental VA agenesis (C2 segment). Results: VA agenesis is caused by the absence of the anastomotic connection normally linking two adjacent intersegmental arteries; in the reported observation, a paravertebral extraforaminal anastomosis replaced the C2 segment normally joining the 1st and 2nd cervical intersegmental arteries through the C2 transverse foramen. Conclusion: We present an observation of segmental VA agenesis. This variant is consistent with the developmental history of the VA. It appears exceptional but is more likely underappreciated.",

keywords = "Anatomical variation, Angiography, Arteries, Vertebral artery",

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AU - Caplan, Justin

N1 - Funding Information: P. Gailloud is a consultant for Cerenovus (honoraria) and a recipient of research grants from Siemens Medical (paid to institution). The other authors have no conflict of interest. Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Publisher Copyright: © 2019, Springer-Verlag France SAS, part of Springer Nature.

PY - 2020/2/1

Y1 - 2020/2/1

N2 - Purpose: To report a case of unilateral segmental agenesis of the vertebral artery (VA). Methods: We describe the angiographic and MRI features of a segmental VA agenesis (C2 segment). Results: VA agenesis is caused by the absence of the anastomotic connection normally linking two adjacent intersegmental arteries; in the reported observation, a paravertebral extraforaminal anastomosis replaced the C2 segment normally joining the 1st and 2nd cervical intersegmental arteries through the C2 transverse foramen. Conclusion: We present an observation of segmental VA agenesis. This variant is consistent with the developmental history of the VA. It appears exceptional but is more likely underappreciated.

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KW - Angiography

KW - Arteries

KW - Vertebral artery

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Unilateral segmental agenesis of the vertebral artery at the C2 level

Abstract

Keywords

ASJC Scopus subject areas

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