視神経管浸潤を伴う結節状トルコ鞍部髄膜腫に対する内視鏡的経鼻手術:最適な視覚成績のための標準手技
Yuki Shinya1,2, Masahiro Shin1,3, Hirotaka Hasegawa1,4
1Department of Neurosurgery, University of Tokyo Hospital, Tokyo, Japan.
Abstract:
Anterior skull base meningiomas often cause visual decline by compressing the optic apparatus. The authors present a tuberculum sellae meningioma with optic canal involvement treated via an endoscopic endonasal approach (EEA). Early devascularization, stepwise detachment, and sharp dissection preserved surrounding neurovascular structures and perforating arteries. Optic canal drilling enabled complete removal, and multilayer reconstruction ensured watertight closure. Gross-total resection was achieved without complications. Visual acuity improved from 0.7 to 1.2, with resolution of visual field defect. This case highlights the EEA as a standard technique for optimal visual outcomes in anterior skull base meningiomas with optic canal involvement. The video can be found here: https://stream.cadmore.media/r10.3171/2025.10.FOCVID25176.
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