†These authors contributed equally.
This paper reports a case of Trousseau syndrome with intracranial venous sinus thrombosis as the first manifestation, which is relatively rare in the clinic. A 44-year-old female patient presented with a blurred vision of the visual substance for 2 months, and the condition was aggravated with a headache for 10 days. The final diagnosis was intracranial venous sinus thrombosis and acute myeloid leukemia subtype M2. Anticoagulant + intra-arterial regimen (cytarabine + igdabistar) was given, and the patient’s headache and blurred vision were gradually restored. After 2 courses of chemotherapy, acute myeloid leukemia subtype M2 was in complete remission. After 6 months of follow-up, headache and the blurred vision disappeared, leukemia did not recur, limb vascular ultrasound was screened regularly, and no new vascular embolism disease occurred.