MRIで内耳出血と診断した急性感音難聴例

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  • A Case of Inner Ear Hemorrhage with Sudden Sensorineural Hearing Loss Diagnosed Using Magnetic Resonance Imaging
  • MRI デ ナイジ シュッケツ ト シンダン シタ キュウセイカンオン ナンチョウレイ

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<p>We report a case of inner ear hemorrhage diagnosed using magnetic resonance imaging (MRI). An 80-year-old man complained of unilateral sudden hearing loss and severe vertigo. Pure tone audiometry showed scale-out for the right ear and 22.5 dB for the left ear. T1-weighted MRI showed a high intensity area without gadolinium enhancement in the right inner ear at 22 days after the onset of symptoms. T2-weighted MRI showed a signal in the right inner ear that was slightly lower than that of normal fluid. A follow-up MRI was performed 56 days after the onset of symptoms. The T1-weighted MRI reexamination showed a signal that was slightly lower than the previous MRI findings. The T2-weighted MRI reexamination showed a signal that was almost the same as that of normal fluid. Despite steroid therapy during the early stage after onset, no change in the hearing level occurred.</p>

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