Male, 55 years old, acute weakness status post T11 laminectomy. Findings are demonstrated relating to laminectomy at T11-12 and intraspinal lesion resection. There remains a patch of T2 hypointense material between the dura and the left dorsal surface of the spinal cord at the T11 level, similar to prior. This tissue may itself enhance to a mild degree, but it is contiguous with enhancement within the adjacent cord which has expanded superiorly and now extends to the level of the T10-11 disk. T2 hyperintense cord swelling has also progressed, now extending up to the T6 level, previously only to T9.Six lumbar type vertebrae are demonstrated when counting from above. Again seen is evidence of posterior instrumented fusion at L3-4 with bilateral pedicle screws and an interbody spacer, as well as anterior instrumented fusion from through the sacrum with interbody spacers. Laminectomy has been performed at L4 and L5 with expansion of the spinal canal at this region. Surgical findings have not significantly changed.Trace retrolisthesis of L3 relative to L4. Trace anterolisthesis of S1 relative to S2. Vertebral body heights are preserved. No concerning marrow signal abnormalities are detected.L1-2: Facet hypertrophy and minimal bulging disk. No significant interval changes.L2-3: Disk bulge and small central disk extrusion. Prominence of the dorsal epidural fat. Moderate spinal canal stenosis. Moderate foraminal narrowing. No significant interval changes.L3-4: Facet hypertrophy. Minimal disk bulging and osteophyte spurring. Mild spinal canal narrowing. Moderate to severe foraminal narrowing. No significant interval changes.L4-5 and L5-L6: Postoperative findings. No significant disk herniation, spinal canal stenosis or neuroforaminal narrowing.L6-S1: No significant spinal canal or neuroforaminal stenosis.
Postoperative findings are redemonstrated consistent with prior laminectomy and lesion resection from the lower thoracic spine. T2 hypointense material between the dura and spinal cord at the operative level persists and may reflect scarring or blood products. Enhancement within the adjacent spinal cord has, however, progressed and now extends further in the superior direction. Associated cord edema has also progressed.There has been no significant interval change in the appearance of extensive postoperative findings in the lumbar spine.