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. 2020 Mar 17;20:97. doi: 10.1186/s12883-020-01651-1

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© The Author(s) 2020

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 1 — Diffusion Weighted Imaging (a) and magnetic resonance angiography (b, c) at 24 h after stroke onset, Digital subtraction angiography at 6 days after stroke onset (d, e, f, g) and at 3 months after stroke onset (h, i). a Diffusion Weighted Imaging showed moderate-sized infarcts involving the left frontal-parietal cortex; b Anteroposterior image of magnetic resonance angiography; c Oblique image of magnetic resonance angiography; d Aortic arch angiogram; e Anteroposterior view of left common carotid artery angiography; f Anteroposterior view of right vertebral artery angiography; g Lateral view of right vertebral artery angiography; h Lateral view of left carotid angiography; i Lateral view of right vertebral artery angiography. 1: the left internal carotid artery; 2: the tentorial artery; 3: the aberrant right subclavian artery; 4: the right vertebral artery originated from the right common carotid artery; 5: the left vertebral artery originated from aortic arch; 6: the formation of carotid dissection; 7: the lateral pontine artery; 8: the posterior communicating artery; 9: the internal carotid artery aneurysm