Spontaneous Cervical Intradural Disc Herniation Presenting withBrown-Sequard Syndrome at C6–C7 level

INTRODUCTION: Intradural disc herniation is a rare disease and it accounts for 0.26–0.30% of all herniated discs. Little was known about intradural disc herniation in the previous studies. CASE REPORT: Here, we report a 49-year-old male patient with Brown-Sequard syndrome caused by spontaneous cervical intradural disc herniation at C6–C7 level. CONCLUSIONS: It is difficult to be diagnosed before the surgery through computed tomography scans, myelograms, and magnetic resonance image scans. Once it was diagnosed, an operation should be performed.