PMC3816749_01
T2 weighted MRI Brain - Left carotid cavernous fistula, most likely direct (type A) with enlarged drainage vessels which included the left superior ophthalmic, left sphenoparietal and inferior petrosal sinuses.
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Magnetic Resonance Imaging (Figure 1) of brain revealed a left carotid cavernous fistula, most likely direct (type A) with enlarged drainage vessels which included the left superior ophthalmic, left sphenoparietal and inferior petrosal sinuses.
Cerebral Angiogram - Basal dural arteriovenous fistula of the posterior fossa. The feeder vessels were mainly from the distal V3-V4 segment of the left vertebral artery and a lesser degree from a contribution from the left occipital artery.
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A cerebral angiogram (Figure 2A-C) was performed before an attempted embolization of the arteriovenous fistula, but it was discovered that there was high flow skull basal dural arteriovenous fistula of the posterior fossa.