Chiari decompression with syrinx. Brain: There are postoperative findings related to Chiari decompression. There is intact cerebrospinal fluid flow across the anterior neo-foramen magnum, but it is diminished posteriorly. There is no evidence of intracranial hemorrhage, mass, or acute infarct. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits are grossly unremarkable.Cervical Spine: There is a persistent cervical syrinx that extends from C3-4 to C6-7 and measures up to 6 mm in diameter. The vertebral column alignment is within normal limits. 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. Findings related to Chiari decompression with diminished cerebrospinal fluid flow across the posterior neo-foramen magnum.2. Persistent cervical syrinx.