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. 2022 Sep 1;13:960702. doi: 10.3389/fneur.2022.960702

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Copyright © 2022 Hou and Yu.

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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External ventricle drainage in a PNSAH. (A) CT showing a classic PNSAH. (B) CT showing acute lateral ventricle dilation. (C) CT showing the normal size of lateral ventricle after external ventricle drainage. CT, computed tomography; PNSAH, perimesencephalic non-aneurysmal subarachnoid hemorrhage.