High-resolution ultrasound of the marginal mandibular branch of the facial nerve: Normal appearance and pathological findings in a postsurgical case series.
MMN
facial nerve
neck dissection
parotidectomy
ultrasound
Journal
Head & neck
ISSN: 1097-0347
Titre abrégé: Head Neck
Pays: United States
ID NLM: 8902541
Informations de publication
Date de publication:
09 2021
09 2021
Historique:
revised:
30
03
2021
received:
16
12
2020
accepted:
14
04
2021
pubmed:
23
4
2021
medline:
21
8
2021
entrez:
22
4
2021
Statut:
ppublish
Résumé
The aim of this study was to validate high-resolution ultrasound (US) as an imaging modality able to map the normal marginal mandibular nerve (MMN) and recognize its abnormalities in the postoperative setting. The ability of US to recognize the MMN was first tested by injecting latex under US guidance on three fresh frozen cadavers. Then, a standardized scanning protocol was established on 20 healthy volunteers based on appropriate landmarks. Finally, a postsurgical series of three patients with MMN abnormalities were examined with US. In the cadaveric study, US-guided latex injection provided identification of the MMN. In healthy volunteers, US was able to recognize the MMN for a segment of 3.4 ± 1.2 cm in length. Pathologic abnormalities of the MMN were detected and characterized in three patients. High-resolution US is a valuable diagnostic tool to identify the MMN and might have potential for detecting its pathologic changes.
Sections du résumé
BACKGROUND
The aim of this study was to validate high-resolution ultrasound (US) as an imaging modality able to map the normal marginal mandibular nerve (MMN) and recognize its abnormalities in the postoperative setting.
METHODS
The ability of US to recognize the MMN was first tested by injecting latex under US guidance on three fresh frozen cadavers. Then, a standardized scanning protocol was established on 20 healthy volunteers based on appropriate landmarks. Finally, a postsurgical series of three patients with MMN abnormalities were examined with US.
RESULTS
In the cadaveric study, US-guided latex injection provided identification of the MMN. In healthy volunteers, US was able to recognize the MMN for a segment of 3.4 ± 1.2 cm in length. Pathologic abnormalities of the MMN were detected and characterized in three patients.
CONCLUSIONS
High-resolution US is a valuable diagnostic tool to identify the MMN and might have potential for detecting its pathologic changes.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
2571-2579Informations de copyright
© 2021 Wiley Periodicals LLC.
Références
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