The cavernous sinus drains venous blood from most of the temporal lobe through the superficial middle cerebral vein (SMCV).1 Brain AVMs located on the surface of the temporal and parietal lobes often drain into the SMCV.2 Therefore, in cases treated with transvenous embolization, accessing the SMCV passing through relaying the cavernous sinus (CS), which can interfere with the deployment of the microcatheter by trapping the catheter in the CS. In this video article, we describe a bailout techniq…