{"id":"59f9f77d-1844-4be9-9419-dfc33373a38b","slug":"spinal-extradural-arachnoid-cyst-in-the-dorsolumbar-region-a-case-report-and-literature-review","title":"Spinal extradural arachnoid cyst in the dorsolumbar region: A case report and literature review","authors":["Juan Pedro Murillo Gutierrez","Albert Gabriel Turpo-Peqqueña"],"abstract":"Background: Spinal extradural arachnoid cysts (SEACs) represent <1% of all spinal epidural lesions. They mostly occur in the thoracic region and occasionally are thoracolumbar in location. Typically, patients may be asymptomatic or exhibit pain with/without a neurological deficit. Case Description: A 44-year-old female presented with a 5-year history of chronic low back pain and intermittent dysesthesia but had no neurological deficits. The magnetic resonance revealed an extradural cyst at D12-L1, isointense to cerebrospinal fluid (CSF) and displacing the dural sac ventrally. The patient underwent a D12-L1 hemilaminectomy for excision of a thin-walled cyst; there were adhesions to the conus, and we encountered no CSF leakage. Postoperatively, pain rapidly improved, and the patient remains asymptomatic. Conclusion: A 44-year-old female presented with pain attributed to a T12-L1 dorsal extradural cyst that was successfully removed through a hemilaminectomy, resulting in full resolution of her pain complaints.","thumbnailUrl":"https://sni-digital-videos.s3.amazonaws.com/articles/59f9f77d-1844-4be9-9419-dfc33373a38b/featured/hero-1781557934336.png","publishDate":"2026-02-06T00:00:00.000Z","doi":"10.25259/SNI_1311_2025","categories":["Spine","Case Report"],"fullTextUrl":"https://surgicalneurologyint.com/wp-content/uploads/2026/02/14290/SNI-17-67.pdf"}