 Compared to 2/9/2015, interval postsurgical changes of left-sided laminotomy and microdiscectomy at the left L5-S1 level is seen. Again seen is soft tissue involving the left lateral recess and left neural foramen at L5-S1 suspected to represent recurrent disc herniation (best seen on sagittal T1 series 401, image 6). Postcontrast may be helpful to identify component of granulation tissue in this region.Five fully lumbar type vertebral bodies are present. The S1 vertebral body demonstrates a transitional morphology. Numbering is similar to prior. Bone marrow signal is benign. Alignment is grossly maintained with perhaps minimal retrolisthesis of L5 on S1.Individual levels as below:L1-L2: No significant spinal or neural foraminal stenosis.L2-L3: No significant spinal or neural foramina stenosis.L3-L4: There is a small right foraminal disc protrusion resulting in mild right neural foraminal narrowing. No significant left neural foraminal narrowing or significant spinal canal narrowing.L4-L5: Minimal disc bulge eccentric to the right with minimal right neural foraminal narrowing. No significant left neural foraminal narrowing. No significant spinal canal narrowing.L5-S1: Please see above, recurrent left foraminal disc herniation is suspected with moderate narrowing of the left neural foramen and partial effacement of the left lateral recess. No significant central canal stenosis. Bilateral facet arthropathy.No paraspinous fluid collections.
1. Compared to 2/9/2015, interval postsurgical changes of left-sided laminotomy and microdiscectomy at the left L5-S1 level. Again seen is soft tissue involving the left lateral recess and left neural foramen at L5-S1 which likely represents recurrent disc herniation (best seen on sagittal T1 series 401, image 6). Postcontrast may be helpful to identify component of granulation tissue in this region.2. Additional levels as above including mild right L3-L4 neural foraminal narrowing related to small disc protrusion.