 Findings are seen compatible with Chiari decompression including suboccipital craniectomy and resection of the posterior arch of C1.Apparent reversal of cervical lordosis may be artifactual due to susceptibility from orthodontic braces versus positional. Thoracic spine is normal in alignment. Size, shape, and signal of the vertebra and intervertebral disks are normal, aside from resection of posterior arch of C1. There is flow anterior to the brainstem and the cord but no significant flow posteriorly; this finding is unchanged compared to prior examination.Cervical and thoracic cord demonstrates normal signal. There is re-demonstration of central cervical canal prominence at C6/7 measuring up to 2.5 mm in diameter, previously 2.4 mm. Stable prominence of the spinal cord centrally at the conus which may be a small syrinx versus a normal variant terminal ventricle. No evidence of disk herniation, thecal sac effacement, or foraminal narrowing in the cervical or thoracic spine. The visualized extraspinal soft tissue structures are unremarkable.
1.Stable C6/7 central spinal cord prominence.2.Stable prominence of the spinal cord centrally at the conus which may be a small syrinx versus a normal variant terminal ventricle.3.Stable appearance of cervicocranial junction following suboccipital decompression.