Surgery for acoustic neurinoma treated by gamma-knife radiosurgery: A case report

K. Tokuda, T. Inamura, T. Uesaka, H. Kenai, A. Karashima, T. Matsushima, M. Fukui

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Abstract

A 52-year-old woman had a history of left hearing loss for 5 years. An acoustic neurinoma with 3.2 cm in diameter was diagnosed and treated with gamma-knife radiosurgery (19 Gy of marginal dose) 1 year and 4 months ago. She developed headache, nausea, and visual disturbance 1 month prior to admission. Slight left facial palsy appeared after radiosurgery. Magnetic resonance imaging demonstrated the tumor with central necrosis in the left cerebellopontine angle cistern, increasing in size to 3.5 cm in diameter, and hydrocephalus. Tumor removal was performed incompletely, because of the fibrous appearance of the tumor and severe adherence with the surrounding cerebellar tissue. Facial palsy did not worsen after surgery. Since the hydrocephalus was not resolved, a right ventriculo-peritoneal shunt was inserted. The clinical course in this case suggests that tumor removal followed by radiosurgery was an approximately effective treatment for large acoustic neurinoma.

Original languageEnglish
Pages (from-to)761-765
Number of pages5
JournalNeurological Surgery
Volume29
Issue number8
Publication statusPublished - 2001

All Science Journal Classification (ASJC) codes

  • Surgery
  • Clinical Neurology

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    Tokuda, K., Inamura, T., Uesaka, T., Kenai, H., Karashima, A., Matsushima, T., & Fukui, M. (2001). Surgery for acoustic neurinoma treated by gamma-knife radiosurgery: A case report. Neurological Surgery, 29(8), 761-765.