Spinal dural arteriovenous fistula(SDAVF)is a common spinal vascular malformation,but its clinical appearance is less specific,so it is difficult to make correct diagnosis in time.

• 硬脊膜动-静脉瘘(SDAVF)是一种常见的脊髓血管畸形,但临床表现常不具有特异性,临床医生对其认识不够,所以患者往往不能得到及时诊断,延误治疗。因此,早期诊断本病非常重要。