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A Case of Thoracic Disc Herniation Extruded to the Dorsal Epidural Space

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DOI: 10.4236/ojo.2015.58030    2,263 Downloads   2,652 Views  


We encountered a patient with thoracic disc herniation that extruded to the dorsal epidural space. The patient was a 78-year-old man in whom listlessness of the lower limbs developed without an inducer and walking became difficult. The patient was diagnosed as having a thoracic spinal cord tumor on MRI by a physician, and was referred to our hospital. Since ring enhancement was observed on contrast MRI performed at our hospital, the patient was diagnosed with disc herniation and surgery was performed. A hernia continuous with the intervertebral space that extruded to the dorsal epidural space was excised. At the final follow up, 1 year and 4 months after surgery, the patient could walk with a cane. Among thoracic disc herniation cases, hernia extruded to the dorsal epidural space is rare and difficult to diagnose by imaging before surgery, but evaluation using contrast MRI is useful in the diagnosis. When a space-occupying lesion is observed in the spinal canal in the lower thoracic spinal region, it is necessary to evaluate it by contrast MRI in consideration of thoracic disc herniation.

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The authors declare no conflicts of interest.

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Takeuchi, S. , Yokoyama, Y. , Iida, Y. , Hasegawa, K. , Wada, A. , Fukano, R. , Shibiuya, K. and Takahashi, H. (2015) A Case of Thoracic Disc Herniation Extruded to the Dorsal Epidural Space. Open Journal of Orthopedics, 5, 229-234. doi: 10.4236/ojo.2015.58030.


[1] Logue, V. (1952) Thoracic Intervertebral Disc Prolapsed with Spinal Cord Compression. Journal of Neurology, Neurosurgery & Psychiatry, 15, 227-241.
[2] Love, J.G. and Schorn, V.G. (1965) Thoracic-Disk Protrusions. JAMA, 191, 627-631.
[3] Arce, C.A. and Dohrmann, G.J. (1985) Herniated Thoracic Disks. Neurologic Clinics, 3, 383-392.
[4] Fujii, T., Seto, A. and Yamasita, J. (2001) A Case Report of Dorsally Sequestrated Thoracic Disc Herniation. Spinal Surgery, 15, 59-63. (In Japanese)
[5] Hayashi, Y., Ohta, H., Shibayama, M., Suzuki, H. and Takahashi, M. (2002) A Case Report of Thoracic Disc Herniation Sequestrated to the Dorsal Epidural Space. The Journal of the Tohkai Spinal Surgery, 16, 19-22.
[6] Karimoto, M., Senzoku, F., Ueo, T., Miki, T., Kotani, H., Ota, S., et al. (1999) Dorsal Extrusion of Thoracic Disc: Case Report. Annual Bulletin of Kosei-Nenkin Hospitals, 26, 25-30. (In Japanese)
[7] Kitano, S., Kato, Y., Hirano, N., Sekido, H. and Tsuji, H. (1985) Thoracic Intervertebral Disc Extrusion with Acute Flaccid Paraplegia. Rinsho Seikei Geka, 20, 179-185. (In Japanese)
[8] Miyakoshi, Y., Hongo, M., Kasukawa, Y., Ishikawa, Y. and Shimada, Y. (2013) Posteriorly Migrated Thoracic Disc Herniation: A Case Report. Journal of Medical Case Reports, 7, 41.
[9] Morita, K., Kira, H., Makino, Y., Hurukawa, K., Iwasaki, K., Onishi, H., et al. (1998) A Case Report of Thoracic Disc Herniation Sequestrated to the Dorsal Epidural Space. Seikeigeka and Saigaigeka, 47, 21-24. (In Japanese)
[10] Morizane, A., Hanakita, J., Suwa, H., Ohshita, N., Gotoh, K. and Matsuoka, T. (1999) Dorsally Sequestrated Thoracic Disc Herniation—Case Report. Neurologia Medico-Chirurgica (Tokyo), 39, 769-772.
[11] Tanno, I., Takebatashi, Y., Kawaguchi, S., Yokozawa, H., Yamasita, T. and Yokogushi, K. (1997) Thoracic Sequestrated Disc Herniateon, Report of Two Cases. Seikeisaigaigeka, 40, 1373-1377. (In Japanese)
[12] Ymanashi, H., Takahashi, Y., Ogawa, J. and Sinozaki, Y. (2015) A Case of Thoracic Disc Herniateon Dorsally Sequestrated to Extradural Space. Higashinihon Seikei Saigaigeka Gakkai Zasshi, 27, 109-113. (In Japanese)
[13] Yukawa, Y., Watanabe, K., Urata, S., Yazaki, S., Oowaki, Y., Yamada, T., et al. (1994) A Case Report of Sequestrated Disc Herniation in Thoracic Spine. Seikeigeka, 45, 603-606. (In Japanese)
[14] Watanabe, T., Ito, Y. and Oda, T. (2011) Thoracic Disc Herniation Sequestrated to the Dorsal Epidural Space: A Case Report. Chubu Seikei Saigaigeka Gakkai Zasshi, 54, 1229-1230. (In Japanese)
[15] Bose, B. (2003) Thoracic Extruded Disc Mimicking Spinal Cord Tumor. The Spine Journal, 3, 82-86.
[16] Kim, I.S., Lee, S.W., Son, B.C. and Sung, J.H. (2008) Posterior Epidural Migration of Thoracic Disc Fragment. Journal of Korean Neurosurgical Society, 43, 239-241.
[17] Partheni, M., Fratzoglou, M., Kalogeropoulou, C.H., Zabakis, P., Panagiotopoulos, V. and Konstantinou, D. (2005) Dorsal Extradural Thoracic Disc Fragment: A Diagnostic Challenge. Journal of Spinal Disorders & Techniques, 18, 544-546.
[18] Song, K.J., Kim, K.B. and Lee, K.B. (2012) Sequestrated Thoracic Disc Herniation Mimicking a Tumoral Lesion in the Spinal Canal—A Case Report. Clinical Imaging, 36, 416-419.
[19] Yano, S., Hida, K., Seki, T., Iwasaki, Y., Akino, M. and Saitou, H. (2004) A Case of Thoracic Disc Herniation with Sudden Onset Paraplegia on Toilet Straining: Case Report. No Shinkei Geka, 31, 1297-1301.
[20] White, A.A. and Panjabi, M.M. (1978) The Basic Kinematics of Human Spine. Spine, 3, 12-20.

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