The [[thoracic spinal nerve]] 11 (T11) is a [[spinal nerve]] of the [[thoracic]] segment. It originates from the [[spinal column]] from below the [[thoracic vertebra]] 11 (T11). ---- A 57 year- old man with lateral [[abdominal wall bulging]]. [[MRI]] showed thoracic [[disk]] [[herniation]] at the T11-T12 level. Needle [[electromyogram]] disclosed acute [[denervation]] in paraspinal and [[abdominal muscle]]s innervated from [[thoracic spinal nerve 11]]. Eight months later the swelling was reduced significantly. [[Thoracic disc herniation]]s are rare and three similar cases have been described previously ((Zambelis T, Polydorou A, Anagnostou E, Angourakis P, Vassilopoulou S. Unusual presentation of thoracic disc herniation. Br J Neurosurg. 2018 Apr 24:1-2. doi: 10.1080/02688697.2018.1466996. [Epub ahead of print] PubMed PMID: 29688067. )).