INTRAMEDULLARY EPIDERMOID TUMORS: A REPORT OF TWO CASES

Spinal epidermoid tumors represent less than 1% of all spinal tumors. The vast majority are subdural and extramedullary. Intramedullary epidermoid tumors are extremely rare. There are 54 intramedullary epidermoid tumors reported in literature.Epidermoid tumors, though seen rarely, must be considered in differential diagnosis of intramedullary mass lesions and the choise for diagnostic test must be Magnetic Resonance Images (MRI).We report two cases of intramedullary epidermoid tumor located in lumbar and thoracic region with the review of the literature.Key Words: Epidermoid tumor, Intramedullary tumor, Magnetic resonance imaging, Spinal tumors.

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  • MacCarty CS, Leavens ME, Lve JG, Kernohan JW. Dermoid and epidermoid tumors in the central nervous system of adults. Surg Gynecol Obstet 1969;108:191-198.
  • Roux A. Mercier C, Larbrisseau A, Dube LJ, Dupuis C, Carpio RD. Intramedullary epidermoid cyst of the spine. Case report. J neurosug 1992;76:528-533.
  • Lunardi P, Missori P, Gagliardi PM, Portuna A. Long term results of the surgical treatment of spinal dermoid and epidermoid tumors, neurosurgery 1989;25:860-864.
  • Penisson-Besnier I, Guy G, Gandon Y. Intramedullary epidermoid cyst evaluated by computed tomographic scan and magnetic resonance imaging: Case report, neurosurgery 1989;25:955-999.
  • Tytus JS, Penybacker J. Pearly tumors in relation to the central nervous system. J neurol neurosurg Psychiatry 1956,19:241-259.
  • Chiari LI. Centrales cholesteatom des Dorsalmarkes mit volkomme entwickelter auf und aboteigender Degeneration. Prager Med Wochenschr 1883:8:380- 387.
  • Gross SW. Concerning intraspinal dermoids and epidermoids, with report of a case. J Merv Ment Dis 1934;80:274-284.
  • Kisrch WM, Hodges PJ 111. An intramedullary epidermal cyst of the thoracic cord associated with a previously repaired meningocele. Case report. J neurosurg 1966;24:1018-1020.
  • Saunders RL. Intramedullary epidermoid cyst with a dermal sinus. J neurosurg 1969;31:83-86.
  • Manno MJ, Uihlein A, Kernohan JW. Intraspinal epidermoids. J neurosurg 1962; 19:754-765.
  • Russell DS, Rubinstein LJ. Pathology of tumors of the nervous System, ed 5. Baltimore: Williams &: Wilkins, 1989, 693-695.
  • Kapila A. Lumbar intraspinal epidermoid tumor. Evaluation with computed tomography and myelography. Spine 1987; 12:81 7-820.
  • Cornu P, Manai R, Poncin JP, Philippon J, Boukobza M, Metzger J. Kyste épidermide intra médullaire. Apport de l'imagerie par résonance magnétique. Rev neurol (Paris) 1989; 145:248-250.