Dural AV Fistula

Findings:

MRA and CTA source images demonstrate abnormal enhancement and flow signal within the posterior compartment of the right cavernous sinus extending along the clival venous plexus. DSA confirms early filling of this venous compartment in the arterial phase.

Discussion:

Findings are diagnositc for a shunting lesion, with low flow indirect CC fistula favored by morphology and angiographic characteristics.

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