{"title":"模拟室管膜瘤的髓内神经鞘瘤：说明性病例。","authors":"Takayasu Ando, Hisaaki Uchikado, Natsuko Miyahara, Satoshi Nagase, Takehiro Makizono, Jin Kikuchi, Gohsuke Hattori, Motohiro Morioka","doi":"10.3171/CASE25127","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Most intramedullary spinal cord tumors are gliomas such as astrocytoma and ependymoma. Intramedullary schwannoma is rare.</p><p><strong>Observations: </strong>A 73-year-old woman presented with slowly progressive leg numbness and disturbed gait. A T10-11 intramedullary ependymoma was diagnosed by contrast-enhanced MRI. Tumor resection was performed via the posterior median sulcus approach under electrophysiological monitoring. Tumor pathology was schwannoma. After surgery, the patient's modified McCormick Scale grade worsened (grade II to grade III).</p><p><strong>Lessons: </strong>Spinal cord ependymoma should be suspected if the posterior median sulcus is displaced. A posterolateral sulcus approach should be considered in such cases. https://thejns.org/doi/10.3171/CASE25127.</p>","PeriodicalId":94098,"journal":{"name":"Journal of neurosurgery. Case lessons","volume":"9 24","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12171107/pdf/","citationCount":"0","resultStr":"{\"title\":\"Intramedullary schwannoma mimicking ependymoma: illustrative case.\",\"authors\":\"Takayasu Ando, Hisaaki Uchikado, Natsuko Miyahara, Satoshi Nagase, Takehiro Makizono, Jin Kikuchi, Gohsuke Hattori, Motohiro Morioka\",\"doi\":\"10.3171/CASE25127\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>Most intramedullary spinal cord tumors are gliomas such as astrocytoma and ependymoma. Intramedullary schwannoma is rare.</p><p><strong>Observations: </strong>A 73-year-old woman presented with slowly progressive leg numbness and disturbed gait. A T10-11 intramedullary ependymoma was diagnosed by contrast-enhanced MRI. Tumor resection was performed via the posterior median sulcus approach under electrophysiological monitoring. Tumor pathology was schwannoma. After surgery, the patient's modified McCormick Scale grade worsened (grade II to grade III).</p><p><strong>Lessons: </strong>Spinal cord ependymoma should be suspected if the posterior median sulcus is displaced. A posterolateral sulcus approach should be considered in such cases. https://thejns.org/doi/10.3171/CASE25127.</p>\",\"PeriodicalId\":94098,\"journal\":{\"name\":\"Journal of neurosurgery. Case lessons\",\"volume\":\"9 24\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-06-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12171107/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of neurosurgery. Case lessons\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3171/CASE25127\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of neurosurgery. Case lessons","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3171/CASE25127","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Background: Most intramedullary spinal cord tumors are gliomas such as astrocytoma and ependymoma. Intramedullary schwannoma is rare.
Observations: A 73-year-old woman presented with slowly progressive leg numbness and disturbed gait. A T10-11 intramedullary ependymoma was diagnosed by contrast-enhanced MRI. Tumor resection was performed via the posterior median sulcus approach under electrophysiological monitoring. Tumor pathology was schwannoma. After surgery, the patient's modified McCormick Scale grade worsened (grade II to grade III).
Lessons: Spinal cord ependymoma should be suspected if the posterior median sulcus is displaced. A posterolateral sulcus approach should be considered in such cases. https://thejns.org/doi/10.3171/CASE25127.
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