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AP and lateral angiography of a left-sided direct carotid-cavernous fistula

AP and lateral angiography of a left-sided direct carotid-cavernous fistula. Injury to the cavernous segment of the left internal carotid artery filling the left cavernous sinus with flow through the circular sinus filling the right cavernous sinus and right inferior petrosal sinus. Blue arrow – filling of superior ophthalmic vein. (Contributed by Dr. Namrata Patel.)