scholarly journals Bilateral typeIIpersistent proatlantal intersegmental artery: a rare variant of persistent carotid-vertebrobasilar anastomoses

2021 ◽  
Author(s):  
Yajun Fang ◽  
Shuhua Li ◽  
Chuanchen Zhang
Keyword(s):  
Rare Variant ◽  
Mr Angiography ◽  
Ultrasound Examination ◽  
Foramen Magnum ◽  
External Carotid Artery ◽  
External Carotid ◽  
Transverse Foramen ◽  
Neck Ultrasound ◽  
Vertebral Arteries ◽  
Subsequent Time

The persistent proatlantal intersegmental artery is a rare variant of persistent carotid-vertebrobasilar anastomoses, especially their bilateral presence is rarer. We report a case of bilateral typeII persistent proatlantal intersegmental artery. The absence of bilateral vertebral arteries was incidentally noted on neck ultrasound examination. Subsequent time-of-flight MR angiography confirmed this. The bilateral typeIIpersistent proatlantal intersegmental artery arose from the cervical external carotid artery, penetrated the C1 transverse foramen, entered the skull via the foramen magnum, and joined the lower portion of the basilar artery.

scholarly journals A Rare Variantion of Left Vertebral Artery Originating from External Carotid Artery: A Case Report

2019 ◽  
Vol 4 (1) ◽  
Keyword(s):  
Carotid Artery ◽  
Vertebral Artery ◽  
Cervical Vertebrae ◽  
External Carotid Artery ◽  
Left Vertebral Artery ◽  
External Carotid ◽  
Transverse Foramen ◽  
Vertebral Arteries ◽  
Tomographic Angiography ◽  
Radiological Procedures

Variations of vertebral arteries are congenital anomalies occurring during the embryonic development. We established a variant left vertebral artery which is a branch of left external carotid artery, by using magnetic resonance angiography and computerized tomographic angiography in a 43-year-old female patient whose vertebral arteries could not be detected in Doppler ultrasonography performed for the evaluation of her dizziness. This vertebral artery was extending up outside the transverse foramina until it entered into the left transverse foramen of the cervical vertebrae at the C1 level. Awareness of such variations of vertebral arteries is important with regard to the prevention of possible cerebrovascular injuries in interventional radiological procedures and vascular surgeries. For this reason, we would like to present this rare case of left vertebral artery showing a different origin and course outside the transverse foramina.

scholarly journals Cervical Vertebral Artery to Facial Branch External Carotid Artery Bypass: 2-Dimensional Operative Video

2020 ◽  
Author(s):  
Benjamin K Hendricks ◽  
Robert F Spetzler
Keyword(s):  
Carotid Artery ◽  
Vertebral Artery ◽  
Artery Bypass ◽  
Video Recording ◽  
Distal Segment ◽  
External Carotid Artery ◽  
External Carotid ◽  
Transverse Foramen ◽  
Institutional Review ◽  
V1 Segment

Abstract Posterior circulation ischemia often presents with dizziness, ataxia, visual disturbances, or motor-sensory deficits. The vertebral artery stenosis most frequently involves the V1 segment proximal to the foraminal segment. This patient demonstrated critical stenosis of the left V1 segment of the vertebral artery related to atherosclerotic disease. A left cervical dissection was performed, and the cervical transverse foramen was opened to permit exposure of the vertebral artery in the V2 segment. The vertebral artery was proximally occluded and transected. An endarterectomy was performed, and an end-to-end anastomosis of the facial branch of the external carotid artery to the distal segment of the transected vertebral artery was completed. Indocyanine green angiography was used to confirm patency of the anastomosis. The patient gave informed consent for surgery and video recording. Institutional review board approval was deemed unnecessary. Used with permission from Barrow Neurological Institute, Phoenix, Arizona.

Incidental identification of the aberrant origin of left vertebral artery using magnetic resonance angiography: A case report

2021 ◽  
Vol 2 (4) ◽  
Author(s):  
Forough Sodaei ◽  
◽  
Vahid Shahmaei ◽  
Maryam Noroozian ◽  
◽  
...  
Keyword(s):  
Case Report ◽  
Magnetic Resonance ◽  
Magnetic Resonance Angiography ◽  
Carotid Artery ◽  
Vertebral Artery ◽  
External Carotid Artery ◽  
Left Vertebral Artery ◽  
External Carotid ◽  
Vertebral Arteries ◽  
The Brain

Background: The vertebral arteries originate from the root of the neck as the first branches of the subclavian arteries. Variations of vertebral arteries are congenital anomalies occurring during embryonic development. Anatomic variations of the left vertebral artery are clinically symptomless and recognized incidentally during angiographic assessments or imaging techniques so the diagnosis of these anomalies is a serious challenge. Anomalous origin of vertebral arteries may lead to neurologic disorders. It is, thus, important to identify variations of the large vessels of the aortic arch when planning neck and cervical spine interventions and diagnostic radiology. For this reason, we would like to present this rare case of left vertebral artery showing a different origin. Case report: In this work, we describe a 60-year-old female patient with headache, lethargy and blurred vision. We employed magnetic resonance angiography for both the brain and neck. There was no lesion in the brain. Incidentally, we found that the root of the left vertebral artery was anatomically aberrant. The left vertebral artery arose from the nearest section of the left external carotid artery, next to the bifurcation of the left common carotid artery, which is a rare variation. Conclusion: Understanding the state of anomalous variations of the origin of the vertebral artery might have crucial implications in angiographic and surgical procedures. It is beneficial to perform more screening with noninvasive studies like neck magnetic resonance angiography in clinical cases with potential symptoms coexisting with other diseases in order to predict possible future problems in intracranial and extracranial interventions. Keywords: Vertebral artery; external carotid artery; anatomic variation; magnetic resonance angiography.

scholarly journals Rare Variant of Persistent Primitive Hypoglossal Artery, Arising From the External Carotid Artery

2012 ◽  
Vol 52 (7) ◽  
pp. 513-515 ◽  
Author(s):  
Masataka NANTO ◽  
Michiko TAKADO ◽  
Hidenori OHBUCHI ◽  
Ayako MANDAI ◽  
Yasuhiko OSAKA ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Rare Variant ◽  
External Carotid Artery ◽  
External Carotid ◽  
Hypoglossal Artery ◽  
Persistent Primitive Hypoglossal Artery

Dual cerebral and meningeal supply to giant arteriovenous malformations of the posterior cerebral hemisphere

1980 ◽  
Vol 52 (2) ◽  
pp. 153-161 ◽  
Author(s):  
Miguel A. Faria ◽  
Alan S. Fleischer
Keyword(s):  
Cerebral Hemisphere ◽  
Arteriovenous Malformations ◽  
Internal Carotid ◽  
External Carotid Artery ◽  
External Carotid ◽  
Preoperative Embolization ◽  
Content Type ◽  
Vertebral Arteries ◽  
Feeding Vessels ◽  
Carotid And Vertebral Arteries

✓ Seven cases of giant posterior hemisphere arteriovenous malformations are described. The significance of meningeal feeding vessels from the external carotid artery in addition to the primary cerebral supply through the internal carotid and vertebral arteries to these malformations is discussed. The necessity of bilateral selective external carotid arteriography is stressed, and the value of preoperative embolization is questioned.

Persistent proatlantal artery with carotid-vertebral anastomosis

1975 ◽  
Vol 43 (4) ◽  
pp. 499-501 ◽  
Author(s):  
T. Surya Rao ◽  
Prahlad K. Sethi
Keyword(s):  
Carotid Artery ◽  
Vertebral Artery ◽  
Foramen Magnum ◽  
External Carotid Artery ◽  
External Carotid ◽  
Content Type ◽  
Proatlantal Artery ◽  
Fine Print

✓ The authors describe the occurrence of proatlantal artery as an incidental angiographic observation in a young Indian soldier. This primitive anastomotic channel is seen extending from near the origin of the external carotid artery to the suboccipital region, traversing the foramen magnum and coursing beyond like a vertebral artery. The developmental and roentgenological aspects of carotid-basilar and carotid-vertebral anastomosis are discussed, along with a review of four similar cases reported previously.

scholarly journals Basilar artery origin of an orbital artery – A rare variant and review of the embryology of the orbital arterial supply

2020 ◽  
Vol 26 (5) ◽  
pp. 668-674
Author(s):  
Pervinder Bhogal ◽  
Cindy Richter ◽  
Stefan Schob ◽  
Muhammad AlMatter ◽  
Victoria Hellstern ◽  
...  
Keyword(s):  
Optic Nerve ◽  
Carotid Artery ◽  
Rare Variant ◽  
Basilar Artery ◽  
Ophthalmic Artery ◽  
External Carotid Artery ◽  
Point Of View ◽  
Arterial Supply ◽  
External Carotid ◽  
First Case

We present a patient with separation of the arterial supply to the globe and the extra-ocular muscles. The ophthalmic artery originates from the typical adult location and supplies only the globe. Arising from the basilar artery was a branch that supplies the extra-ocular muscles. There was no apparent connection between these vessels around the optic nerve and no evidence of supply from the external carotid artery. We discuss the embryology of the ophthalmic artery from the point of view of Padget and Lasjaunias and offer our opinion on the on-going controversy. We believe this is the first case to highlight the trigeminal-primitive maxillary-stapedial anastamotic pathway.

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