“…[2][3][4] The initiating events which lead to their development are not clear, but the literature reports association with trauma, infection, recent surgery, and dural sinus thrombosis. [2][3][4] A wide variety of signs and symptoms, which can vary because of lesion location and pattern of venous drainage, may arise from DAVFs, namely, pulsatile tinnitus, ophthalmoplegia, proptosis, chemosis, retro-orbital pain, decreased visual acuity, seizures, Parkinsonism, cerebellar symptoms, apathy, and dementia. [2][3][4] …”