内耳炎・脳膿瘍をきたした<i>Enterococcus</i>による隠蔽性乳様突起炎例

DOI Web Site Web Site 参考文献9件
  • 桑原 幹夫
    群馬大学附属病院耳鼻咽喉科・頭頸部外科
  • 清水 龍吾
    群馬大学附属病院耳鼻咽喉科・頭頸部外科
  • 松山 敏之
    群馬大学大学院医学系研究科耳鼻咽喉科・頭頸部外科
  • 近松 一朗
    群馬大学大学院医学系研究科耳鼻咽喉科・頭頸部外科

書誌事項

タイトル別名
  • A Case of Masked Mastoiditis Caused by an <i>Enterococcus</i>, with Labyrinthitis and Brain Abscess
  • 内耳炎・脳膿瘍をきたしたEnterococcusによる隠蔽性乳様突起炎例
  • ナイジエン ・ ノウ ノウヨウ オ キタシタ Enterococcus ニ ヨル インペイセイニュウヨウ トッキエンレイ

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<p>Acute hearing loss can arise from a variety of disorders, with many cases treated as deafness of sudden onset. We report the case of a patient who presented with hearing loss, vertigo, facial palsy and brain abscess due to masked mastoiditis.</p><p>The patient, a 54-year-old man was referred to us with acute hearing loss on the right side and vertigo. He was started on treatment with an oral steroid, as a case of sudden-onset deafness. He developed right facial nerve palsy 10 days later, and a headache and right abducens nerve palsy 28 days later. Imaging examinations revealed pathological changes in the mastoid with the posterior tympanum and a cerebral abscess. The cerebral abscess failed to respond to antibiotic therapy, and mastoidectomy and tympanoplasty were carried out. A review of the past medical history of the patient revealed that he had been diagnosed as having otitis media 2 months earlier, which was still persistent. Enterococcus gallinarum, a rare anaerobic bacterium, was isolated from the middle ear fluid by bacterial culture. Masked mastoiditis without obvious inflammatory findings is difficult to diagnose, and careful observation is required.</p>

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