Extended endoscopic transorbital approach for mesial temporal lobe glioma

The endoscopic transorbital approach (ETOA) is a minimally invasive technique that provides direct access to the mesial temporal lobe while avoiding brain retraction, preserving the lateral temporal neocortex, and minimizing the risk of damage to the optic radiations. In this video, the authors demonstrate an extended ETOA with lateral orbitotomy for the resection of a mesial temporal lobe glioma, emphasizing its utility along the long axis of the amygdala-hippocampal complex. This video is intended to serve as a practical guide for accessing the mesial temporal lobe through the extended transorbital corridor. The video can be found here: https://stream.cadmore.media/r10.3171/2025.1.FOCVID24189.