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Endoscopic Endonasal Surgery for Skull Base Chordomas and Chondrosarcomas : Basic to Advanced Cases Masahiro SHIN 1 1Department of Neurosurgery, Teikyo University Hospital Keyword: 経蝶形骨洞手術 , 神経内視鏡 , 頭蓋底 , 脊索腫 , 軟骨肉腫 , chondrosarcoma , chordoma , neuroendoscope , skull base , transsphenoidal surgery pp.373-383
Published Date 2026/3/10
DOI https://doi.org/10.11477/mf.030126030540020373
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 Skull base chordomas and chondrosarcomas are rare bone tumors predominantly found in the petroclival areas and involve the cranial nerves, internal carotid arteries, and brain stem. Their clinical aggressiveness and high risk of recurrence necessitate multimodal treatments, including extensive surgical resection and high-dose radiotherapy. Surgery is commonly the first step in their treatment, and ABCD rules should be respected; anatomical preservation of the innocent nasal anatomy for potential repeated surgeries in case of recurrence, block-by-block resection, coverage of the intradural residual tumor to prevent surgical site dissemination and cerebrospinal fluid dissemination, and drilling of the marginal bone. Here, we present our surgical strategy for skull base chordomas and chondrosarcomas for radical surgical resection and extirpation of the tumor.


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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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