Internal Auditory Canal Lipoma: An Unusual Intracranial Lesion.
Cerebellopontine angle
Internal auditory canal
Lipoma
Journal
World neurosurgery
ISSN: 1878-8769
Titre abrégé: World Neurosurg
Pays: United States
ID NLM: 101528275
Informations de publication
Date de publication:
Mar 2020
Mar 2020
Historique:
received:
30
09
2019
accepted:
07
12
2019
pubmed:
18
12
2019
medline:
26
3
2020
entrez:
18
12
2019
Statut:
ppublish
Résumé
Internal auditory canal (IAC) lipomas are rare intracranial lesions. Consequently, preoperative imaging is essential in differentiating IAC lipomas from more common tumors such as vestibular schwannomas. The hallmark of lipomas on magnetic resonance imaging (MRI) is hyperintensity on T1-weighted images that suppresses on fat-suppressed sequences and does not enhance with gadolinium administration. The present case describes a 53-year-old woman who was misdiagnosed with a vestibular schwannoma because of the lack of appropriate MRI sequences. This case demonstrates the importance of ensuring that both fat-suppressed and non-fat-suppressed T1-weighted pregadolinium images are obtained in the diagnostic process of IAC lesions. It is therefore recommended that imaging centers ensure that such sequences are included in their MRI protocols.
Sections du résumé
BACKGROUND
BACKGROUND
Internal auditory canal (IAC) lipomas are rare intracranial lesions. Consequently, preoperative imaging is essential in differentiating IAC lipomas from more common tumors such as vestibular schwannomas. The hallmark of lipomas on magnetic resonance imaging (MRI) is hyperintensity on T1-weighted images that suppresses on fat-suppressed sequences and does not enhance with gadolinium administration.
CASE DESCRIPTION
METHODS
The present case describes a 53-year-old woman who was misdiagnosed with a vestibular schwannoma because of the lack of appropriate MRI sequences.
CONCLUSIONS
CONCLUSIONS
This case demonstrates the importance of ensuring that both fat-suppressed and non-fat-suppressed T1-weighted pregadolinium images are obtained in the diagnostic process of IAC lesions. It is therefore recommended that imaging centers ensure that such sequences are included in their MRI protocols.
Identifiants
pubmed: 31843721
pii: S1878-8750(19)33065-7
doi: 10.1016/j.wneu.2019.12.037
pii:
doi:
Types de publication
Case Reports
Langues
eng
Sous-ensembles de citation
IM
Pagination
156-159Informations de copyright
Copyright © 2019 Elsevier Inc. All rights reserved.