Minimal Chiari, large syrinx, and worsening pain in hands/fingers/legs /back. There are postoperative findings related to Chiari surgery. The cerebellar tonsils assume an unchanged configuration and morphology. There is intact cerebrospinal fluid flow across the foramen magnum. There is a persistent syrinx that involves the cervical and thoracic spinal cord, as well as the conus medullaris, measuring up to 6 mm in width. The tip of the conus medullaris is positioned at the T12-L1 level. 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. There are several small sacral perineural cysts. The paravertebral soft tissues are unchanged.
Postoperative findings related to Chiari decompression with persistent extensive syringohydromyelia, but intact cerebrospinal fluid flow across the foramen magnum.