Spinal dural arteriovenous fistula 8 years after lumbar discectomy surgery: A case report and review of literature

Figure 1 Patient’s first admission preoperative magnetic resonance imaging. A: Sagittal view of the patient showed a straightening of the physiological curvature of the lumbar spine and a herniated disc at L4-L5 segments (orange arrow); B: Axial scan showed a herniated disc at segments L4-L5, compression of the dura, marked compression of the foramina on both sides and spinal canal stenosis.