Cervical intradural disc herniation, case report and reflection on preoperative imaging.

Intradural disc herniation in the cervical spine is a rare condition that requires identification and modification of surgical technique to avoid postoperative complications. A 55-year-old male with a C4-5 intradural disc herniation who presented with radicular symptoms was treated via anterior cervical discectomy and fusion. The dural defect was identified at the time of surgery. On retrospective review of the patient's preoperative MRI, there were subtle findings of the intradural disc location, including a surrounding ring of hyperintensity on T2 and less deformation of the spinal cord than would be expected given its size.