The clinical manifestations, diagnosis, treatment and prognosis of cerebral venous thrombosis accompanied by dural arteriovenous fistulas were summarized and analyzed, so as to improve the clinicians' knowledge of the combined cases.

The clinical symptoms, MR (including MRI, MRA, MRV, SWI) and DSA manifestations, treatment and outcome of cerebral venous thrombosis accompanied by dural arteriovenous fistula in Peking Union Medical College Hospital from March 2010 to March 2020 were analyzed retrospectively.

Four cases of cerebral venous thrombosis accompanied by dural arteriovenous fistula were diagnosed in our hospital, all of whom were middle-aged men with subacute onset. The clinical manifestations included blurred vision, epileptic attack, memory decline, character change, etc. One patient had abnormal signal of frontal parietal cortex on MRI, and three patients had abnormal signal of bilateral thalamic lesions on MRI. The head MRV of 4 patients were abnormal. Four patients were diagnosed as cerebral venous thrombosis accompanied by dural arteriovenous fistula by DSA.

In clinic, young and middle-aged patients with cerebral venous thrombosis of unknown cause, especially those with protracted course of disease, need to be considered with dural arteriovenous fistula. There is not specific clinical which is often related to the location of thrombosis and venous reflux disorders. Bilateral thalamus is the most common affected area, and the targeted imaging examination is very important for the timely diagnosis and treatment.