Fig. 1From: Dura sac compression due to spinal epidural gas pseudocyst after lumbar decompression surgery: a case reportPreoperative lateral X-ray (a) and sagittal MRI (b) of lumbar spine demonstrated L4 spondylolisthesis and spondylolysis in both sides and disc protrusion of L5/S1 compressing left L5 and S1 rootBack to article page