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Figure 2: (a) Venous phase of left internal carotid angiography shows congestion of the left cavernous sinus (arrow) and superficial middle cerebral vein (arrow head). (b) Delayed phase of left external carotid angiography shows venous congestive continuation (arrow and arrow head)

Figure 2: (a) Venous phase of left internal carotid angiography shows congestion of the left cavernous sinus (arrow) and superficial middle cerebral vein (arrow head). (b) Delayed phase of left external carotid angiography shows venous congestive continuation (arrow and arrow head)