Dural arteriovenous malformation

A dural arteriovenous fistula (DAVF) or Malformation, is an abnormal direct connection (fistula) between a meningeal artery and a meningeal vein or dural venous sinus. Signs and Symptoms The most common signs/symptoms of DAVFs are: Pulsatile tinnitus Occipital bruit Headache Visual impairment PapilledemaPulsatile tinnitus is the most common symptom in patients, and it is associated with transverse-sigmoid sinus DAVFs. [Source: Wikipedia ]