Posttraumatic syrinx resulting in syringomyelia and syringobulbia: illustrative case

The authors highlight key features of PTS, including 1) bilateral ascending expansile syrinx in the peridorsal horn gray matter, 2) medullary extension with trigeminal nucleus symptoms consistent with syringobulbia, and 3) evidence of spontaneous remission or collapsing cord sign. Additionally, risk factors for early PTS are discussed, including motor complete thoracic SCI with spinal stenosis on MRI. Operative management included hardware removal, laminectomy, spinal cord untethering with wide syringostomy, and duraplasty. https://thejns.org/doi/10.3171/CASE25797.