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Updated: Jun 21, 2025

Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
How I do it: Endoscopic endonasal resection of the medial wall of the cavernous sinus
Eugenio Cárdenas Ruiz-Valdepeñas1, Estrella Barrero Ruiz2, Aberto Acitores Cancela3
1Department of Neurological Surgery, Hospital Virgen Del Rocío, Avenida Manuel Siurot S/N, 41013, Seville, Spain. eugeniocarde@hotmail.com.
Background:
Resection of the medial wall of the cavernous sinus (MWCSR) is a growing surgical maneuver for the radical removal of pituitary adenomas.
Method:
We present a simple modification of the technique following the two dural layers of the floor of the sella turcica, allowing for early identification of the medial wall and simplifying dissection. We support this technique with an anatomical analysis on cadaveric specimens and clarifying dissection images.
Conclusion:
Recognition and dissection of the dural unfolding of the floor of the sella turcica are "key points" that lower the risk and facilitate the MWCSR.

