Reason: Chiari History: surveillance Again seen are postoperative changes of Chiari decompression. There is mildly diminished CSF space ventrally at the cervicomedullary junction, appearing similar to prior study. There is normal biphasic flow of CSF at the foramen magnum both ventrally and dorsally. No appreciable change in appearance of the cervical spinal cord syrinx. For example the syrinx measures 2 mm at C6 level, also 2 mm previously. Focus of high T2 signal and slight volume loss in the right hemicord at C2-3 level is also unchanged and compatible with myelomalacia. There is unchanged multilevel nerve root expansion with associated neural foramen widening. There is no significant intraspinal extension or associated spinal cord compression. Vertebral body and disc heights are preserved. Cervical lordosis is preserved. Alignment is anatomic. Vertebral body marrow signal is benign.
1. Again seen are postsurgical changes of Chiari decompression with unchanged appearance of the cervical syrinx and areas of myelomalacia.2. No appreciable change in appearance of the peripheral nerve sheath tumors involving the neural foramina throughout the cervical spine.