耳下腺内顔面神経鞘腫の検討

DOI 被引用文献6件 参考文献26件

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タイトル別名
  • Neurilemoma of the facial nerve in the parotid gland

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Seven cases of intraparotid facial neurilemoma were reported. Magnetic resonance (MR) findings including tumor extension to the stylomastoid foramen, target sign and multicentricity as well as frozen section diagnosis were effective tools for diagnosis while aspiration biopsy cytology was not helpful in preoperative appraisal. Tumor extension to the stylomastoid foramen in MR imaging was a sign of preoperative facial nerve palsy. Comparison of histopathological findings with MR findings indicated that differences in local cell growth of the tumor causes target sign in MR imaging. Because intraparotid neurilemomas are often misdiagnosed as pleomorphic adenoma which shows tumor recurrence after scattering of the tumor cells in the surgical field, preservation of tumor capsules with the facial nerve accompanied by tumor rupture may be preserved in the surgery only when the diagnosis of neurilemoma is confirmed.

収録刊行物

  • 口腔・咽頭科

    口腔・咽頭科 16 (3), 337-343, 2004

    日本口腔・咽頭科学会

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