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. 2009 Nov;5(4):279–288. doi: 10.2174/157340309789317887

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© 2009 Bentham Science Publishers Ltd.

This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.5/), which permits unrestrictive use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. (6). Cerebral Angiography in a patient with right internal carotid artery occlusion. — Panels A and B. Leptomeningeal pial collateral channels (arrow heads) to the right anterior and middle cerebral artery territory (Panel A early arterial phase, Panel B late arterial phase). Panel C. Retrograde filling of intracranial internal carotid artery (arrow heads) through the ophthalmic artery (dotted arrow). Stenosis of the extracranial internal carotid artery in the proximal segment at the origin (black arrow) and occlusion in the distal extracranial segment (white solid arrow) are seen. Panel D. Collateral flow to the right anterior (solid arrow) and middle cerebral (dotted arrow) arteries through the anterior communicating artery (large solid arrow), in same patient with right internal carotid artery occlusion.