Spinal Intradural Extramedullary Ependymoma:A Case Report Masaya NAKAGAWA 1 , Takeshi HARA 2 , Hirokazu IWAMURO 2 , Tatsuya SATO 2 , Yuko OHARA 2 , Nozomu KOBAYASHI 2 , Hidetoshi NOJIRI 2 , Takatoshi OKUDA 2 , Kazuo KANEKO 2 , Madoka NAKAJIMA 3 , Hajime ARAI 3 1Department of Neurosurgery, National Defense Medical College 2Spine and Spinal Cord Center, Juntendo University 3Department of Neurosurgery, Juntendo University Keyword: spinal cord ependymoma , intradural extramedullary pp.819-825
Published Date 2020/9/10
DOI https://doi.org/10.11477/mf.1436204278
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 Ependymoma is the most common primary intramedullary tumor of the spinal cord, accounting for a quarter of these tumors. We experienced a case of ‘ependymoma of the spinal cord with a cystic lesion that presented as an intradural extramedullary tumor extending from the thoracic to lumbar vertebrae. In review of past literature on reports of spinal intradural extramedullary ependymoma, lesions spanning three or more vertebrae with cystic lesions were frequent, and about half were World Health Organization grade Ⅱ or higher. Dissemination or recurrence of these tumors may occur after surgery. There is no consensus on postoperative adjuvant therapy for intradural extramedullary spinal ependymoma, but careful consideration should be given to the intraoperative findings and the characteristics of the tumor.

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