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Updated: Dec 17, 2025

Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
How I do it: Subtemporal transtentorial approach for cavernous malformation of the pons
Walter C Jean1, Gregory L Davis2
1Department of Neurosurgery, George Washington University, 2150 Pennsylvania Avenue, 7th floor, Washington, DC, 20037, USA. wjean@mfa.gwu.edu.
Background:
Removal of a pontine cavernous malformation requires sufficient exposure since any restriction on surgical freedom may lead to suboptimal visualization of the lesion, injury to the brainstem, and neurological catastrophe.
Methods:
We describe and demonstrate the subtemporal transtentorial approach to a cavernous malformation of the upper pons, with emphasis on adequate surgical exposure while avoiding the need for extensive bone removal of the skull base.
Conclusions:
The meticulous technique is paramount to the successful removal of any brainstem cavernous malformation. Along with the surgical exposure, delicate handling of the malformation is demonstrated in the accompanying operative video.

