 The lumbar spine is in normal alignment, with a normal lumbar lordosis. The vertebral body and disk heights are well-maintained. There is a prominent Schmorl's node along the superior endplate of T12. No worrisome focal marrow signal abnormality is appreciated. There is disc desiccation at L3-L4. There is linear T2 hyperintensity in the conus at the level of L1 consistent with known syrinx, which was partially visualized on previous thoracic spine MRI. Otherwise, the distal spinal cord and conus are within normal limits with the conus terminating at the lower L1 level. There is no fat signal intensity in the distal canal. There are postoperative changes at L4-L5 and L5-S1 presumably related to cord untethering with deformity of the distal thecal sac.At T11-T12, T12-L1, L1-L2 and L2-L3: There is no evidence of disc disease or spinal canal or foraminal narrowing.At L3-4: There is disc bulge, mild facet arthropathy and ligamentum flavum thickening resulting in mild to moderate right and mild left neuroforaminal narrowing. There is no spinal canal stenosis.At L4-L5: There is minimal disc bulge and facet arthropathy. No significant neuroforaminal or spinal canal stenosis.At L5-S1: No significant disc bulge, neural foraminal, or spinal canal stenosis.
1. Mild degenerative disc disease mostly at L3-L4 resulting in mild to moderate right and mild left neural foraminal narrowing. No spinal canal stenosis at any level. 2. Linear T2 signal in the conus at L1 level consistent with previously questioned small syrinx.3. Postsurgical changes of cord untethering. Prone imaging not performed.