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. 2022 Aug 22;13:813207. doi: 10.3389/fneur.2022.813207

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Copyright © 2022 Chen, Zhang, Zhu, Wang, Fan, Ni, Dong, Lv and Liu.

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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A right internal carotid artery (ICA) angiogram, anteroposterior projection (A) and lateral projection (B), demonstrating a Spetzler–Martin grade III brain arteriovenous malformation (BAVM) located in the right basal ganglia drained by the basal vein of Rosenthal, the nidus was supplied by the right AChA and LSAs. After provisional balloon occlusion of theright ICA, Onyx was injected transvenously into the AVM nidus and sufficient retrograde nidal penetration was achieved (C). The Onyx cast is visualized at the end of the procedure (D). Final angiography of right ICA, anteroposterior projection (E) and lateral projection (F), showed complete obliteration of BAVM.