====Cerebral venous sinus thrombosis====
Cerebral venous sinus thrombosis (CVST) is a rare form of [[stroke]] which results from the blockage of the dural venous sinuses by a thrombus. Symptoms may include [[headache]], abnormal vision, any of the symptoms of stroke such as weakness of the face and limbs on one side of the body and [[seizures]]. The diagnosis is usually made with a Computed Tomography|CT or Magnetic Resonance Imaging|MRI scan. The majority of persons affected make a full recovery. The [[mortality rate]] is 4.3%.<ref name="Canhao">{{cite journal | last=Canhão | first=P | coauthors=Ferro JM, Lindgren AG et al. | title=Causes and predictors of death in cerebral venous thrombosis | volume=36 | issue=8 | pages=1720–1725 | journal=Stroke | date=August 2005 | url=http://stroke.ahajournals.org/cgi/content/full/36/8/1720 | pmid=16002765 | doi=10.1161/01.STR.0000173152.84438.1c}}</ref>
===Arterial thrombosis===