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. 2017 Nov 29;8:630. doi: 10.3389/fneur.2017.00630

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Copyright © 2017 Choi, Lee, Kim, Kim, Choi, Kim, Heo and Chang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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A 72-year-old male with a complaint of acute onset left arm weakness. Stroke due to large artery to artery atherosclerosis. (A) DWI shows acute border zone infarctions on the right cerebral hemisphere. (B) Three-dimensional time-of-flight MRA of extracranial arteries shows moderate-to-severe stenosis with plaque at right proximal internal carotid artery and ECA (arrows). Compared with non-contrast fluid-attenuated inversion recovery (FLAIR) (C), the post-contrast FLAIR (D) image shows diffuse sulcal enhancement (hyperintense acute reperfusion marker sign) along the right cerebral sulci (arrows).