Venous drainage from the superficial veins is primarily received by the superior sagittal sinus and cavernous sinus. Although the pattern of superficial veins coursing through the subarachnoid space from the cerebral cortex is quite variable, three veins appear to be fairly constant. Positioned in parallel to the lateral fissure is the superficial middle cerebral vein, which drains into the cavernous sinus from the temporal lobe (eFig. 9.25A). Connecting to the superficial middle cerebral vein perpendicularly is the superior anastomotic vein (of Trolard) (eFig. 9.25A). This vein courses superiorly across the parietal lobe to drain into the superior sagittal sinus. Also connecting to the superficial middle cerebral vein perpendicularly is the inferior anastomotic vein (of Labbé) (eFig. 9.25A). The inferior anastomotic vein passes inferiorly along the temporal lobe to drain into the transverse sinus.