Sciatica, history of herniated disc at L4,L5. Please reevaluate. Five lumbar type vertebral bodies are presumed to be present. Vertebral body heights are within normal limits. There is mild straightening of the lumbar spinal curvature, alignment is otherwise maintained. Bone marrow signal is benign. Alignment is within normal limits. No focal suspicious osseous lesions are seen. There is mild diffuse low T1 marrow signal which is suboptimally evaluated due to motion degradation and nonspecific. The conus medullaris is normal in position.Multilevel degenerative changes are seen, as described below:L1-L2: No significant disc disease. No spinal canal or neural foraminal stenosis.L2-L3: No significant disc disease. No spinal canal or neural foraminal stenosis.L3-L4: No significant disc disease. No spinal canal or neural foraminal stenosis.L4-L5: There is disc desiccation and right paracentral disc protrusion which effaces the lateral recess and may be impinging on the descending L5 nerve root. No significant central canal stenosis. There is no significant narrowing of the neural foramina. L5-S1: There is disc desiccation with mild bulge and possible tiny right paracentral disc protrusion. There is however no significant spinal canal or neural foraminal stenosis.Paraspinous soft tissues are within normal limits.
Degenerative changes at the L4-L5 and L5-S1 levels. There is a right paracentral disc protrusion at the L4-L5 level which effaces the lateral recess and may be impinging on the right L5 nerve root. There is otherwise no significant spinal canal or neural foraminal stenosis elsewhere in the lumbar spine.