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KMID : 0858620020060010056
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Korean Journal of Audiology
2002 Volume.6 No. 1 p.56 ~ p.59
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Three Cases of Sudden Hearing Loss Associated with Labyrinthine Hemorrhage on Magnetic Resonance Imaging
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Park Sang-Yoo
Kim Jin-Hyung
Kim Tae-Hwan
Park Jae-Hong
Sung Ki-Joon
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Abstract
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When high signal intensity is observed on precontrast T1-weighted MR images of the labyrinth, possible explanations include fat, slow flow, high protein content and prior hemorrhage. Weissman et al. (1992) suggested that the possibility of such high signals were caused by labyrinthine hemorrhage. We assessed all available patients with high signals in the labyrinth on precontrast T1-weighted MR images who developed sudden hearing loss and vertigo. Three patients were found to have severe and irreversible impairment of both cochlear and vestibular function by inner ear hemorrhage. We present the clinical and radiologic findings along with review of the literature.
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KEYWORD
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Labyrinthine hemorrhage, Sudden hearing loss, Magnetic resonance imaging
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