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. 2023 Aug 28;11(9):2409. doi: 10.3390/biomedicines11092409

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© 2023 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Illustrative case. A 25-year-old man presented after an assault to the head. An axial non-contrast computed tomography scan of the head showed a left temporal contusion with adjacent subarachnoid hemorrhage (A) and a right temporal contusion and tentorial subdural hematoma (B). Right (C) and left (D) internal carotid artery digital subtraction angiograms (lateral view) obtained on day 10 showed moderate vasospasm of both supraclinoid internal carotid arteries (arrows). Note the traumatic pseudoaneurysm of the cavernous right internal carotid artery.