CC BY-NC-ND 4.0 · Int Arch Otorhinolaryngol 2023; 27(03): e511-e517
DOI: 10.1055/s-0042-1755308
Original Research

Lower Four Cranial Nerves in the Management of Glomus Jugulare: Anatomical Study

Ashraf Fayed
1   Otolaryngology Department, El Galaa Military Hospital, Cairo, Egypt
,
2   Otolaryngology Department, Faculty of Medicine, Kafrelsheikh University, Kafrelsheikh, Egypt
,
Jacques Magnan
3   Otolaryngology Department, Hospital Nord, Mediterranean University, Marseille, France
,
Renaud Meller
3   Otolaryngology Department, Hospital Nord, Mediterranean University, Marseille, France
,
3   Otolaryngology Department, Hospital Nord, Mediterranean University, Marseille, France
,
2   Otolaryngology Department, Faculty of Medicine, Kafrelsheikh University, Kafrelsheikh, Egypt
› Author Affiliations
Funding The authors have no funding or financial relationships to disclose.

Abstract

Introduction The surgical management that achieves minimal morbidity and mortality for patients with glomus and non-glomus tumors involving the jugular foramen (JF) region requires a comprehensive understanding of the complex anatomy, anatomic variability, and pathological anatomy of this region.

Objective The aim of this study is to propose a rational guideline to expose and preserve the lower cranial nerves (CNs) in the lateral approach of the JF.

Methods The technique utilized is the gross and microdissection of 4 fixed cadaveric heads to revise the JF's surgical anatomy and high part of the carotid sheath compared with surgical cases to understand and preserve the integrity of lower CNs. The method involves radical mastoidectomy, microdissection of the JF, facial nerve, and high neck just below the carotid canal and the JF. The CNs IX, X, XI, and XII are microscopically dissected and kept in sight up to the JF.

Results This study realized well the surgical and applied anatomy of the lower CNs with relation to the facial nerve and JF.

Conclusions The JF anatomy is complicated, and the key to safely operate on it and preserving the lower CNs is to find the posterior belly of the digastric muscle, to skeletonize the facial nerve, to remove the mastoid tip preserving the stylomastoid foramen, to skeletonize the sigmoid sinus and posterior fossa dura not only anterior but also posteroinferior to reach and drill the jugular tubercle.

Ethical Approval

All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional research editorial boards and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.


All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional research editorial board (33–5-021).


Availability of Data and Materials

The datasets used and/or analyzed during the current study are available from the corresponding authors upon reasonable request.


Authors' Contributions

A.F, methodology and idea; M.D, review writing and editing the final draft; J.M, data collection; R.M, data collection and revision; A.D, data collection, and revision; S.Z, review writing and reference collection.


We conducted our work in the otology laboratory of the Faculty of Medicine from the Mediterranean University, and the Department of Otorhinolaryngology and Head and Neck Surgery of Marseille, France.




Publication History

Received: 24 May 2021

Accepted: 28 June 2022

Article published online:
11 April 2023

© 2022. Fundação Otorrinolaringologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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