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Clinical characteristics and surgical outcomes of spinal myxopapillary ependymomas

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机构: [1]Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China [2]China National Clinical Research Center for Neurological Diseases (NCRC-ND), Beijing, China [3]Department of Orthopedics, Peking University Third Hospital, Beijing, China
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关键词: MRI Myxopapillary ependymoma Prognosis Spinal tumor Surgical resection

摘要:
Spinal myxopapillary ependymoma (SME) is a rare pathological variant of ependymoma, which most commonly occurs in the cauda equina and filum terminale of the spinal cord. Although SME is considered as a benign entity, histologically corresponding to WHO grade I, local recurrence and metastasis have been reported in many cases. The purpose of this large-scale, single-center study was to investigate the clinical characteristics and surgical outcomes of SME. A total of 34 consecutive patients diagnosed with SME were enrolled in this retrospective study. All patients underwent magnetic resonance imaging (MRI) and were treated with surgical resection. Individual clinical data were collected, and surgical outcomes were evaluated during the follow-up period. There were 21 males and 13 females, with an average age of 29.97 years. Clinical symptoms included back pain (82.4%), weakness (44.1%) and numbness (20.6%) in extremities, and sphincter dysfunction (26.5%). The tumor locations included lumbar segments (52.9%), thoracolumbar segments (23.5%), lumbosacral segments (17.6%), and thoraco-lumbo-sacral segments (5.9%). On MRI, all SMEs appeared hypointense on T1-weighted imaging and hyperintense on T2-weighted imaging, with remarkable enhancement. Gross total resection was achieved in 18 patients, and subtotal resection (STR) was achieved in 16 patients. After an average follow-up period of 41.5 months, recurrence was noted in 5 patients (5 of 16) who underwent STR. SMEs have some characteristic features on MRI which can facilitate the preoperative diagnosis. Complete surgical resection is the best treatment of choice with a favorable outcome. In cases of incomplete resection, postoperative radiotherapy may be an effective alternative. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.

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出版当年[2018]版:
大类 | 4 区 医学
小类 | 3 区 外科 4 区 临床神经病学
最新[2023]版:
大类 | 3 区 医学
小类 | 3 区 临床神经病学 3 区 外科
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第一作者机构: [1]Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China [2]China National Clinical Research Center for Neurological Diseases (NCRC-ND), Beijing, China
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通讯机构: [1]Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China [2]China National Clinical Research Center for Neurological Diseases (NCRC-ND), Beijing, China
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