Suspected long syrinx with back pain: evaluate for tethered cord. The previously demonstrated small caliber thoracic syrinx is no longer discernible. The conus medullaris tip lies at the L1 level. There is no evidence of fibrofatty filum terminale. The vertebral column alignment is within normal limits. Aside from a small intravertebral disc herniation in the superior T9 endplate, the vertebral body and disc space heights are preserved. The vertebral bone marrow signal is unremarkable. There is no significant spinal canal stenosis. The paravertebral soft tissues are unremarkable.
1. The previously demonstrated small caliber thoracic syrinx is no longer discernible.2. The conus medullaris is not low-lying. 