A Case of Dural Arteriovenous Fistula Secondary to Cerebral Venous Thrombosis Treated with Mechanical Thrombectomy

Abstract

A 42-year-old woman presented with headache and seizures. Magnetic resonance imaging revealed occlusion of the superior sagittal sinus and adjacent cortical veins. She was diagnosed with cerebral venous thrombosis (CVT). In addition to anticoagulation therapy, a mechanical thrombectomy (MT) was performed, which resulted in complete recovery without neurological sequelae. However, several months later, she developed a secondary dural arteriovenous fistula (DAVF). Reports of DAVF secondary to CVT treated with MT are extremely rare. After CVT, regular follow-up imaging is necessary to monitor the development of secondary DAVF.