嗅溝腫瘍に対する前外側転移アプローチ：外科的選択の根拠。二次元ビデオ

Olfactory groove meningiomas represent a surgical challenge due to their intimate relationship with the anterior cranial fossa, olfactory tracts, and critical neurovascular structures. In this video, the authors present a microsurgical resection of an olfactory groove meningioma through a right frontolateral approach. This technique provides a wide operative corridor with minimal frontal lobe retraction, early devascularization of the tumor, and anatomical preservation of the contralateral olfactory tract. Stepwise dissection, relevant microsurgical anatomy, and surgical pearls are demonstrated. The video highlights the safety and rationale of this approach for selected anterior skull base meningiomas with emphasis on olfactory function preservation. The video can be found here: https://stream.cadmore.media/r10.3171/2025.10.FOCVID25173.