Known L4-5 spinal canal stenosis, sciatica. For the purpose of this dictation, the lowest visualized intervertebral disc space is labeled L5-S1. There is grade 1 spondylolisthesis of L4 on L5.There is normal lumbar lordosis. The spine alignment is anatomic. The vertebral body height is preserved. The bone marrow and end plates demonstrate a normal MR appearance. The signal of the visualized cord is normal. The conus medullaris terminates at the T12-L1 level. The paraspinal soft tissues are unremarkable.Degenerative changes are specified by the intervertebral level as follows: T12-L1: Disc desiccation, no neuroforaminal narrowing or spinal stenosis. L1-L2: Disc desiccation, no neuroforaminal narrowing or spinal stenosis. L2-L3: Disc desiccation, minimal bulging of disc. No neuroforaminal narrowing or spinal stenosis. L3-L4: Disc desiccation, diffuse bulging of disc weight bilateral ligamentum flavum thickening demonstrate mild spinal canal narrowing.L4-L5: Disc desiccation, severe spinal canal stenosis due to spondylolisthesis as well as associated diffuse bulging of disc and bilateral ligamentum flavum thickening. Bilateral facet joints fluid collection with the subchondrosclerosis indicate facet osteoarthritis. L5-S1: Disc desiccation, diffuse bulging of disc, mild spinal canal stenosis.
Degenerative spondylosis as described above.Grade 1 spondylolisthesis of L4 on L5 with severe spinal canal stenosis at the level.I personally reviewed the Images and/or procedure with the Resident/Fellow and agree with this report.