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V055: ENDOSCOPIC ENDONASAL TRANSCLIVAL RESECTION OF A FORAMEN MAGNUM MENINGIOMA: MASTERING THE INFERIOR CLIVAL CORRIDOR
Marco Antonio Munuzuri-Camacho, MD¹; Maria Fernanda Tejeda-Pineda, MD²; Luis Alberto Ortega-Porcayo, MD³; Marcos V. Sangrador-Deitos, MD⁴; Victor Alcocer-Barradas, MD¹; ¹Neurosurgery Department, National Institute of Neurology and Neurosurgery, Mexico City, Mexico; ²Neurosurgery Department, Baylor College of Medicine, Texas, USA; ³Neurosurgery Department, Hospital Angeles Pedregal, Mexico City, Mexico; ⁴Neurosurgery Department, Hospital Zambrano Hellion, Monterrey, Mexico

This video demonstrates endoscopic transnasal transclival resection of a ventral foramen magnum meningioma. After presenting clinical and pre-operative imaging, step-by-step narration illustrates exposure, dissection, and safe brainstem decompression. Post-operative imaging confirms resection. Compared with the far lateral approach, the endonasal route provides a direct midline corridor while avoiding brainstem and cranial nerve retraction. The video underscores technical nuances, safety strategies, and highlights endonasal surgery as a viable alternative for challenging skull base pathology.

 

 

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