Clinical question: Prominent central spinal canal with tethered cord, 6 month follow. Signs and symptoms: Six month follow-up. Nonenhanced lumbar MRI:Examination redemonstrate a stable there cord without evidence of change since prior exam. Fatty density in the distal filum terminalis is again identified. There is abrupt angulation of the filum and sacrum nerve roots extending from the dorsal aspect of thecal sac at S2 level anteriorly and inseparable from the anterior wall of the thecal sac at S2 level. This appearance is identical to prior exam and highly suggestive of adhesion.There is visualization of minimally prominent central canal of the tethered cord without interval change since prior exam and with questionable clinical significance.There is no detectable anterior movement of the cord on prone sagittal T2 weighted series compared to supine sagittal T2.There is larger than expected caliber of the spinal canal (dural ectasia) with very subtle flattening as well as scalloping deformity of the posterior aspect of vertebral bodies of the lower lumbar and sacral spine identical to prior study.Nonenhanced thoracic MRI:Examination similar to prior study demonstrate slightly smaller caliber of the cord and likely secondary to tethering. Similar to prior exam there is visualization of a tiny central canal of questionable clinical significance.The signal intensity and alignment the vertebral column is unremarkable and stable since prior study. Mild prominence of subarachnoid space however less conspicuous compared to lumbosacral scanal is again noted without change since prior study.
1.No evidence of acute or new finding since prior study.2.Stable findings of tethered cord.3.No detectable anterior movement of the cord on prone sagittal T2 weighted images.4.Visualization of a punctate size central canal without change since prior exam and with questionable clinical significance.