Endoscopic approaches to the trigeminal nerve and clinical consideration for trigeminal schwannomas: a cadaveric study

Abstract

The 5 endoscopic approaches effectively followed the course of the trigeminal nerve with minimal invasiveness. These approaches could provide alternative options for the management of trigeminal schwannoma.

Endonasal, transmaxillary, transpterygoid approach to the foramen ovale: radio-anatomical study of surgical feasibility

“…Access to the infratemporal fossa has been studied by a number of authors, assessing both clinical and anatomical scenarios, with a variety of modifications proposed for each approach. [15][16][17][18][19][20][21] Two major routes of access to the infratemporal fossa have been described: the lateral and the anterior approach. 3,[22][23][24] The lateral approach adds great complexity to the procedure as it generally involves resection of the parotid gland (and related facial nerve dissection), or dissection or resection of the temporalis muscle and its related attachment (the mandibular condyle).…”

ICAR: endoscopic skull‐base surgery

“…Trigeminal schwannomas (TSs) are the most common skull‐base schwannomas after vestibular schwannomas and account for up to 0.36% of all intracranial neoplasms and 8% of skull‐base schwannomas . Most of them develop in the Gasserian ganglion, but they can occur anywhere along the course of the trigeminal root, ganglion, and peripheral branches.…”

“…Most of them develop in the Gasserian ganglion, but they can occur anywhere along the course of the trigeminal root, ganglion, and peripheral branches. Therefore, they can be intradural, interdural, and extradural, can exist in the posterior fossa and middle fossa/Meckel's cave, and extend along V1 into the orbit, V2 into the pterygopalatine fossa (PPF), and V3 into the infratemporal fossa …”

Endoscopic Endonasal Transmaxillary Transpterygoid Approach to Meckel Cave: Anatomical Study and Preliminary Clinical Results

“…Due to the panoramic view provided by high-definition endoscopy, the endoscopic endonasal approach has been used for midline skull base lesions and extended to adjacent regions such as MC. 9 In addition to excellent exposure and visualization of the skull base structures, endoscopy offers a less invasive procedure and has the potential advantages of promoting early recovery and reducing postoperative discomfort. Because of the lack of an explicit understanding of anatomy and skillful endoscopic manipulation, the endoscopic endonasal transmaxillary transpterygoid route was only utilized in a few medical centers.…”