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. 2020 Jul 24;11:652. doi: 10.3389/fneur.2020.00652

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Copyright © 2020 Beer-Furlan, Priddy, Jamshidi, Shaikhouni, Prevedello, Ditzel Filho, Otto, Carrau and Prevedello.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Intraoperative images of endoscopic endonasal decompression for a right side CS meningioma. (A) Drilling down the intersphenoid septum and accessory septa flush with the ventral skull base; (B) exposure of the sellar dura and CS dura with a bridge of bone overlying the cavernous internal carotid artery; (C) complete decompression of the bone overlying the sella, medial SOF, and CS; (D) opening the sellar interdural space (between the periosteal and meningeal layers of dura) that is occupied by the tumor and it is considered one of the safe zones for biopsy. CS, cavernous sinus; SOF, superior orbital fissure; V2, maxillary nerve.