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. 2021 Jun 16;12:669276. doi: 10.3389/fneur.2021.669276

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Copyright © 2021 Peng, Wu, Doycheva, He, Huang, Chen, Matei, Ding, Chen, Xu and Zhou.

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) and the copyright owner(s) 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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Morphological changes after dissection. (A) Ultrasound showed a normal artery in the control and the false lumen (yellow arrow), true lumen (green arrow), and dissociated intima (red arrow) in the dissection. (B) DSA showed that the intramural hematoma formation caused arterial lumen stenosis (Group I) or occlusion (Group II). The red arrow points to the dissection location. (C) H&E staining showed that the subintima hematoma, which is partly organized, caused stenosis in Group I or full occlusion in Group II. Contralateral arterial lumen showed no stenosis or occlusion.