A Case Report of Intradural Herniated Thoracic Disc.

A 72-year-old male complained of low back pain, dysesthesia in the right lower limb, and difficulty in walking.Examination showed muscle weakness in the lower limbs marked on the right side and sensory disturbance in the right lower limb.Myelogram showed a complete block at the level of the 9/10 thoracic disc. At the same level, myelo-CT scans and MR images demonstrated a right-sided mass that compressed the ventral wall of the dura matar.In operation, after incision of the dura matar posteriorly, a herniated disc material were found intradurally and extra-arachnoidally. After removal of the disc material, a hole was formed in the ventral wall of the dura matar through the Th9/10 disc space.Postoperatively, the patient recovered extremely well.