Successful excision of intradural extramedullary plexiform T1-T4 schwannoma.

Background: Plexiform schwannomas (PSs) are rare. Here, we describe the clinical features, diagnosis, treatment, and outcome of a 17-year-old male presenting with a T1-T4 intradural extramedullary (IDEM).

Case Description: A 17-year-old male presented with back pain and pain radiating down both legs. The thoracic magnetic resonance revealed a left-sided T1-T4 IDEM mass. The patient underwent a T2-T4 laminectomy for gross total tumor excision, followed by posterior fusion. Immunohistochemical examination revealed S100 positivity, supporting the diagnosis of PS.

Conclusion: IDEM PSs are rare, may be readily diagnosed with MR, and can be successfully resected.