perimedullary arteriovenous fistula

例句：

1. 1.This condition is often associated with multiple sclerosis.
   这种状况常与多发性硬化症相关。
2. 2.The patient's blood pressure was elevated, and the diagnosis of perimedullary arteriovenous fistula was made.
   患者的血压升高，诊断为髓内动脉-静脉瘘。
3. 3. Treatment for this condition typically involves surgical intervention.
   治疗这种状况通常需要手术治疗。