A Case of Intralabyrinthine Schwannoma with Unilateral Hearing Loss Diagnosed Using Magnetic Resonance Imaging
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- Fukushima Hisaki
- Kawasaki Medical School
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- Yoda Shigetoshi
- Kawasaki Medical School
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- Uno Masako
- Kawasaki Medical School
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- Morita Norimasa
- Kawasaki Medical School
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- Harada Tamotsu
- Kawasaki Medical School
Bibliographic Information
- Other Title
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- MRIで迷路内神経鞘腫と診断した感音難聴例
- MRI デ メイロ ナイ シンケイ サヤ シュ ト シンダン シタ カンオン ナンチョウレイ
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Abstract
<p>We report a case of inner ear intralabyrinthine schwannoma diagnosed using magnetic resonance imaging (MRI). A 60-year-old woman complained of a right hearing loss that had occurred suddenly 2 months earlier. Pure tone audiometry showed scale-out for the right ear and 11.3 dB for the left ear. T1-weighted MRI showed a slightly higher signal intensity than that of normal intralabyrinthine fluid in the vestibule and lateral semicircular canal. The lesion was strongly and sharply enhanced after the intravenous administration of gadolinium. A sharply delineated signal intensity loss was also seen for the same lesion on a T2-weighted MRI examination. A follow-up MRI examination performed 4 years later showed no changes from the initial images. Her hearing level also did not change, and she did not experience vertigo during the 4-year follow-up period.</p>
Journal
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- Practica oto-rhino-laryngologica. Suppl.
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Practica oto-rhino-laryngologica. Suppl. 149 (0), 10-13, 2017
The Society of Practical Otolaryngology
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Details 詳細情報について
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- CRID
- 1390001204328541952
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- NII Article ID
- 130005529761
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- NII Book ID
- AN10020883
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- ISSN
- 21851557
- 09121870
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- NDL BIB ID
- 028139516
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed