open access

Ahead of Print
ORIGINAL ARTICLES
Published online: 2019-05-20
Submitted: 2019-03-13
Accepted: 2019-05-14
Get Citation

Arterial supply of the trigeminal ganglion, a micromorphological study

Mila Ćetković, Bojan V. Štimec, Dinka Mucić, Aleksandra Dožić, Dejan Ćetković, Valvita Reçi, Selim Çerkezi, Dejan Ćalasan, Milan Milisavljević, Sadi Bexheti
DOI: 10.5603/FM.a2019.0062
·
Pubmed: 31282551

open access

Ahead of Print
ORIGINAL ARTICLES
Published online: 2019-05-20
Submitted: 2019-03-13
Accepted: 2019-05-14

Abstract

Background: In this study, we explored the specific microanatomical properties of the trigeminal ganglion (TG) blood supply and its close neurovascular relationships with the surrounding vessels. Possible clinical implications have been discussed.

Materials and methods: The internal carotid and maxillary arteries of 25 adult and 4 fetal heads were injected with a 10% mixture of India ink and gelatin, and their TGs subsequently underwent microdissection, observation and morphometry under a stereoscopic microscope.

Results: The number of trigeminal arteries varied between 3 and 5 (mean 3.34), originating from two or three of the following sources: the inferolateral trunk (ILT) (100%), the meningohypophyseal trunk (MHT) (100%), and from the middle meningeal artery (MMA) (92%). In total, the mean diameter of the trigeminal branches was 0.222 mm. The trigeminal branch of the ILT supplied medial and middle parts of the TG, branch of the MHT supplied the medial part of the TG, and the branch of the MMA supplied the lateral part of the TG. Additional arteries for the TG emerged from the dural vascular plexus and the vascular network of the plexal segment of the trigeminal nerve. Uniform and specific intraganglionic dense capillary network was observed for each sensory trigeminal neuron.

Conclusions: The reported features of the TG vasculature could be implied in a safer setting for surgical approach to the skull base, in relation to the surrounding structures. The morphometric data on TG vasculature provide anatomical basis for better understanding the complex TG blood supply from the internal and external carotid arteries.

Abstract

Background: In this study, we explored the specific microanatomical properties of the trigeminal ganglion (TG) blood supply and its close neurovascular relationships with the surrounding vessels. Possible clinical implications have been discussed.

Materials and methods: The internal carotid and maxillary arteries of 25 adult and 4 fetal heads were injected with a 10% mixture of India ink and gelatin, and their TGs subsequently underwent microdissection, observation and morphometry under a stereoscopic microscope.

Results: The number of trigeminal arteries varied between 3 and 5 (mean 3.34), originating from two or three of the following sources: the inferolateral trunk (ILT) (100%), the meningohypophyseal trunk (MHT) (100%), and from the middle meningeal artery (MMA) (92%). In total, the mean diameter of the trigeminal branches was 0.222 mm. The trigeminal branch of the ILT supplied medial and middle parts of the TG, branch of the MHT supplied the medial part of the TG, and the branch of the MMA supplied the lateral part of the TG. Additional arteries for the TG emerged from the dural vascular plexus and the vascular network of the plexal segment of the trigeminal nerve. Uniform and specific intraganglionic dense capillary network was observed for each sensory trigeminal neuron.

Conclusions: The reported features of the TG vasculature could be implied in a safer setting for surgical approach to the skull base, in relation to the surrounding structures. The morphometric data on TG vasculature provide anatomical basis for better understanding the complex TG blood supply from the internal and external carotid arteries.

Get Citation

Keywords

trigeminal ganglion, trigeminal arteries, inferolateral trunk, meningo-hypophyseal trunk, middle meningeal artery

About this article
Title

Arterial supply of the trigeminal ganglion, a micromorphological study

Journal

Folia Morphologica

Issue

Ahead of Print

Published online

2019-05-20

DOI

10.5603/FM.a2019.0062

Pubmed

31282551

Keywords

trigeminal ganglion
trigeminal arteries
inferolateral trunk
meningo-hypophyseal trunk
middle meningeal artery

Authors

Mila Ćetković
Bojan V. Štimec
Dinka Mucić
Aleksandra Dožić
Dejan Ćetković
Valvita Reçi
Selim Çerkezi
Dejan Ćalasan
Milan Milisavljević
Sadi Bexheti

Important: This website uses cookies. More >>

The cookies allow us to identify your computer and find out details about your last visit. They remembering whether you've visited the site before, so that you remain logged in - or to help us work out how many new website visitors we get each month. Most internet browsers accept cookies automatically, but you can change the settings of your browser to erase cookies or prevent automatic acceptance if you prefer.

By  "Via Medica sp. z o.o." sp.k., Świętokrzyska 73, 80–180 Gdańsk, Poland

tel.:+48 58 320 94 94, faks:+48 58 320 94 60, e-mail:  viamedica@viamedica.pl