MRI で橋部にT2高信号を認めためまいの検討 A Neurotological Study of Patients with Pontine Hyperintense Lesions on T2 Weighted MRI

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Pontine hyperintense lesions seen on T2-weighted MRI were thought to be related to disequilibrium. Some of these lesions have a low signal on T1-weighted imaging, while others have an iso-signal. The purpose of this study was to clarify the relationship between neurological findings and pontine lesions detected by MRI. The subjects were 11 patients (6 males, 5 females; age range: 30 to 83 years [mean: 64.1 years]) with pontine hyperintense lesions identified on T2-weighted MRI. We compared the clinical signs and the MRI findings. Six of the patients had low-intensity areas on T1-weighted images, and the other 5 had iso-intensity areas. Six patients complained of vertigo, and 5 complained of dizziness. Eight complained of positionaly evoked disequilibrium. Positional nystagmus was seen in 4 patients. In 9 patients, abnormalities were found on the ENG test, including the saccadic eye movement test, ETT, and OKP. Numbness on the lips occurred in 2 patients, and cerebellar signs were present in 4. None of the patients had facial paralysis. Disequilibrium originating in the central nervous system was suggested in 10 patients. Clinical examinations revealed similar findings in patients with a low signal on T1-weighted MRI and those with an iso-signal. Our results indicate that pontine lesions identified by T2-weighted MRI cause vertigo or dizziness, and, in most cases, these lesions cause abnormal neurological or neurological abnormalities.

収録刊行物

  • 耳鼻咽喉科臨床

    耳鼻咽喉科臨床 95(3), 225-231, 2002-03-01

    The Society of Practical Otolaryngology

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各種コード

  • NII論文ID(NAID)
    10008099135
  • NII書誌ID(NCID)
    AN00107089
  • 本文言語コード
    JPN
  • 資料種別
    NOT
  • ISSN
    00326313
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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