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Case Reports
. 2021 Apr 21;16(6):1574-1579.
doi: 10.1016/j.radcr.2021.03.059. eCollection 2021 Jun.

Anomalous origin of right vertebral artery from right common carotid artery

Mohamed Elsayed Elnaggar  1 , Hiba Abduljawad  1 , Ali Assiri  1 , Wael Hamed Ebrahim  1
Affiliations
Case Reports

Anomalous origin of right vertebral artery from right common carotid artery

Mohamed Elsayed Elnaggar et al. Radiol Case Rep. .

Erratum in

Abstract

Anomalous origin of vertebral arteries is a rare vascular anomaly and mostly discovered as incidental findings during computed tomography angiogram , magnetic resonance angiography or digital subtracted angiogram of the aortic arch and cerebral vessels. Herein, we present an extremely rare case of a 31-year-old female who presented with headache after emotional trauma. A conventional cerebral angiogram showed anomalous origin of the right vertebral artery. This finding was incidentally discovered, and it is of utmost importance for future head and neck endovascular interventions to avoid inadvertent arterial injury.

Keywords: ARSA, aberrant right subclavian artery; AVM, arteriovenous malformation; Anomalous origin; CTA, computed tomography angiogram; DSA, digital subtracted angiogram; LCCA, left common carotid; LECA, left external carotid artery; LICA, left internal carotid artery; LSCA, left subclavian artery; MRA, magnetic resonance angiography; RCCA, right common carotid artery; RSCA, right subclavian artery; Right common carotid artery; Right subclavian artery; Right vertebral artery; VA, vertebral artery.

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Figures

Fig 1 –
Fig. 1
Digital subtracted angiogram (DSA) in angiographic AP projection demonstrating origin of RCCA directly from aortic arch with absent brachiocephalic trunk and RVA arising from RCCA.
Fig 2 –
Fig. 2
DSA in AP projection showing absent Right brachiocephalic trunk with RSCA directly arising from aortic arch.
Fig 3
Fig. 3
DSA in AP projection showing LCCA, LECA and LICA.
Fig 4 –
Fig. 4
DSA in AP projection showing normal origin of LVA from 1st part of LSCA.
Fig 5 –
Fig. 5
DSA in AP projection showing an attenuated left transverse sinus with focal stenosis at the junction. The arrow indicates the left sigmoid sinus.
Fig 6 –
Fig. 6
DSA in lateral projection showing venous varices at posterior aspect of the neck.
Fig 7 –
Fig. 7
An illustration showing the described anomaly of the right vertebral artery arising from the right common carotid artery (A) in comparison to the usual arch anatomy where the right vertebral artery arises from the right subclavian artery (B). BA, brachiocephalic artery; LCCA, left common carotid artery; LSCA, left subclavian artery; RCCA, right common carotid artery; RSCA, right subclavian artery; RVA, right vertebral artery.
See this image and copyright information in PMC

References

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