Figure 2: Digital subtraction angiography (DSA) of the venous phase from the left common carotid artery (LCCA) demonstrating patency of venous sinuses and occlusion of superior ophthalmic vein and cavernous sinus. A. Anterior-posterior and B. lateral. The large arrow points towards a void demonstrating no opacification of the cavernous sinus. The small arrow points towards a void demonstrating no opacification of the left superior ophthalmic vein.