caa a22 4500 44583336X CHVBK 20180317145322.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s00586-011-1772-z doi (NATIONALLICENCE)springer-10.1007/s00586-011-1772-z Intradural disc herniation at L5 level mimicking an intradural spinal tumor [Elektronische Daten] [Chang-Chih Liu, Chih-Ta Huang, Chih-Ming Lin, Kan-Nan Liu] Intradural lumbar disc herniation is a rare complication of disc disease. The reason for the tearing of the dura matter by a herniated disc is not clearly known. Intradural disc herniations usually occur at the disc levels and are often seen at L4-L5 level but have also been reported at other intervertebral disc levels. However, intradural disc herniation at mid-vertebral levels is rare in the literature and mimics an intradural extramedullary spinal tumor lesion in radiological evaluation. Although magnetic resonance imaging (MRI) with gadolinium is useful in the diagnosis of this condition, preoperative correct diagnosis is usually difficult and the definitive diagnosis must be made during surgery. We describe here a 50-year-old female patient who presented with pain in the lower back for 6months and a sudden exacerbation of the pain that spread to the left leg as well as numbness in both legs for 2weeks. MRI demonstrated an intradural mass at the level of L5. Laminectomy was performed, and subsequently durotomy was also performed. An intradural disc fragment was found and completely removed. The patient recovered fully in 3months. Intradural lumbar disc herniation must be considered in the differential diagnosis of mass lesions in the spinal canal. Springer-Verlag, 2011 Intervertebral disc herniation nationallicence Intradural disc herniation nationallicence Intraspinal tumor nationallicence L5 nationallicence Liu Chang-Chih Department of Neurosurgery, Hsinchu Cathay General Hospital, 678, Section2, Zhonghua Road, Hsinchu, Taiwan aut Huang Chih-Ta Department of Neurosurgery, Hsinchu Cathay General Hospital, 678, Section2, Zhonghua Road, Hsinchu, Taiwan aut Lin Chih-Ming Department of Neurology, Hsinchu Cathay General Hospital, 678, Section2, Zhonghua Road, Hsinchu, Taiwan aut Liu Kan-Nan Department of Neurosurgery, Hsinchu Cathay General Hospital, 678, Section2, Zhonghua Road, Hsinchu, Taiwan aut European Spine Journal Springer-Verlag 20(2011-07-01), 326-329 0940-6719 20<326 2011 20 586 https://doi.org/10.1007/s00586-011-1772-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00586-011-1772-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liu Chang-Chih Department of Neurosurgery, Hsinchu Cathay General Hospital, 678, Section2, Zhonghua Road, Hsinchu, Taiwan aut NATIONALLICENCE 700 1- Huang Chih-Ta Department of Neurosurgery, Hsinchu Cathay General Hospital, 678, Section2, Zhonghua Road, Hsinchu, Taiwan aut NATIONALLICENCE 700 1- Lin Chih-Ming Department of Neurology, Hsinchu Cathay General Hospital, 678, Section2, Zhonghua Road, Hsinchu, Taiwan aut NATIONALLICENCE 700 1- Liu Kan-Nan Department of Neurosurgery, Hsinchu Cathay General Hospital, 678, Section2, Zhonghua Road, Hsinchu, Taiwan aut NATIONALLICENCE 773 0- European Spine Journal Springer-Verlag 20(2011-07-01), 326-329 0940-6719 20<326 2011 20 586 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer