Venous Stroke: Be Aware Cerebral venous sinus thrombosis CVST is a rare condition where a blood clot forms in the brain’s dural venous sinuses, blocking normal blood drainage and increasing intracranial pressure. Causes & Risk Factors: * Prothrombotic states: Genetic (e.g., Factor V Leiden) or acquired (e.g., pregnancy, oral contraceptives). * Infections: Sinusitis, mastoiditis. * Systemic diseases: Lupus, inflammatory bowel disease. * Trauma or surgery: Head injuries affecting venous sinuses. *