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Figure 2: (a-c) Digital subtraction angiography selective left ECA injection lateral view in arterial phase, delayed venous phase, and right anterior oblique; (d-f) Cone beam CT sagittal, axial, and oblique coronal image showing venous reflux into inferior striate vein (arrow) through prominent uncal vein (arrow head). Note the opacification of lateral mesencephalic vein (dotted arrow). Note no posterior drainage into the posterior sinuses including superior and inferior petrosal sinuses

Figure 2: (a-c) Digital subtraction angiography selective left ECA injection lateral view in arterial phase, delayed venous phase, and right anterior oblique; (d-f) Cone beam CT sagittal, axial, and oblique coronal image showing venous reflux into inferior striate vein (arrow) through prominent uncal vein (arrow head). Note the opacification of lateral mesencephalic vein (dotted arrow). Note no posterior drainage into the posterior sinuses including superior and inferior petrosal sinuses