 The vertebral column alignment is within normal limits. The vertebral body heights are preserved. The vertebral bone marrow signal is unremarkable. The imaged spinal cord displays normal signal and morphology. The paravertebral soft tissues are unremarkable. At L3-L4, there is been interval development of mild disc desiccation and disc bulge as well as mild facet arthropathy and ligamentum flavum thickening but without spinal canal or neural foramen stenosis. At L4-L5, there is slightly worsened disc desiccation, unchanged rightward disc bulge, and slightly progressed facet arthropathy but without significant spinal canal or neural foramen stenosis. At L5-S1 there is slightly progressed disc desiccation and loss of disc height, unchanged leftward disc bulge and a superimposed small central disc extrusion, and slightly progressed facet arthropathy. These findings result in unchanged mild left neural foramen stenosis but no significant spinal canal stenosis.
1. No evidence of demyelinating lesions in the inferior spinal cord.2. Overall slightly progressed lumbar spine degenerative changes most pronounced at L5-S1 where there is a grossly unchanged small central disc extrusion.