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Bilateral dilated tortuous cisternal tuft of the vessels are noted in quadrigeminal cistern and tela choroidae on both sides made of dilated arteries and early draining veins in keeping with AVM likely made by posterior choroidal vessels, thalmo-perforators, and peri-chalosal arteries from PCAs (Choroidal AVMs).
Extensively dilated right superior petrosal sinus extending from right sigmoid sinus joining cavernous sinus with secondary asymmetrical extensive dilation and venous congestion of the right cavernous sinus draining the markedly dilated superior and inferior ophthalmic veins. The ophthalmic veins are joining dilated anterior facial vein, pre-nasal and pre-malar vein as well as retro mandibular vein.