Stimulation Mapping Guided Endoscopic Endonasal Transclival Resection of Pontine Cavernoma
Abstract
We demonstrate endoscopic endonasal transclival resection of a ventral pontine cavernous malformation in a patient with progressive brainstem deficits, including internuclear ophthalmoplegia and tetraparesis. The video highlights the critical use of intraoperative subcortical stimulation to navigate distorted corticospinal tracts and define a safe myelotomy zone. Complete resection of the cavernous malformation and resolution of ophthalmoplegia were achieved, underscoring the utility of this approach and feasibility of functional mapping via the endonasal corridor. Publication History Article published online: 27 February 2026 © 2026. Thieme. All rights reserved. Georg Thieme Verlag KG Oswald-Hesse-Straße 50, 70469 Stuttgart, Germany
Fields of Study & Subjects
Head and Neck Surgical Oncology
Vascular Malformations Diagnosis and Treatment
Neurosurgical Procedures and Complications
Publication details
- Journal / source
- Journal of Neurological Surgery Part B Skull Base
- Volume
- 87
- Issue
- S 01
- Pages
- S1–S548
- Publication date
- 27 February 2026
- Language
- EN