Left sciatica. For the purposes of numbering, there are 5 lumbar type vertebral bodies. There is minimal L5-S1 retrolisthesis. Alignment of the lumbar spine is otherwise preserved. The vertebral bodies are preserved in height. Scattered T1 hyperintense foci are compatible with focal fat or hemangiomas. There is mild disc desiccation at L4-L5 and L5-S1 . Disc height is fairly preserved. The spinal canal is preserved. The conus medullaris has normal position and signal characteristics. T12-L1, L1-L2 and L2-L3: There is no spinal canal or foraminal narrowing. Facet productive change and ligamenta flava thickening are mild.L3-L4: Disc bulge is mild. Ligamenta flava thickening and facet proliferative change are moderate. There is mild spinal canal and neuroforaminal narrowing.L4-L5: Disc bulge is mild. Ligamenta flava thickening and facet proliferative change are moderate. There is mild spinal canal narrowing.L5-S1: Disc bulge is mild but is slightly eccentric to the left causing mild narrowing of the left subarticular recess (the traversing left S1 nerve root) and minimal left neural foraminal narrowing contacting (without obvious impingement) of the left L5 nerve root.
Mild degenerative changes in the lumbar spine. There is mild disc bulge eccentric to the left at L5-S1 which which very mildly narrows the left lateral recess and left neural foramen at this level, and possibly the etiology of the symptoms. There is no high-grade spinal canal or neural foraminal stenosis at any level. I personally reviewed the Images and/or procedure with the Resident/Fellow and agree with this report.