Trochlear nerve schwannoma with intratumoral hemorrhage: case report.

Shigeo Ohba, Tomoru Miwa, Takeshi Kawase

研究成果: Review article

16 引用 (Scopus)

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OBJECTIVE AND IMPORTANCE: Schwannomas originating from the trochlear nerve without neurofibromatosis are extremely rare. Thirty-four cases have previously been reported in the literature, and only 25 cases were pathologically diagnosed. In addition, intratumoral hemorrhage in intracranial schwannomas is also rare. Approximately 30 cases of intracranial schwannomas with intratumoral hemorrhage have been reported. CLINICAL PRESENTATION: A 42-year-old man presented with left hemiparesis and right trochlear nerve palsy. Magnetic resonance imaging revealed an abnormal cystic lesion beside the brainstem. His symptoms rapidly worsened after enlargement of the mass because of intratumoral hemorrhage. INTERVENTION: Gross total removal of the tumor was performed via the anterior transpetrosal approach. The tip of the trochlear nerve was fanned out and unified with the tumor. The tumor was diagnosed as a schwannoma. CONCLUSION: The patient's hemiparesis improved postoperatively, and he was discharged 1 week after the operation. Magnetic resonance imaging performed 4 months later revealed no regrowth of the tumor. Only right trochlear nerve palsy has persisted. This report is the second case of intratumoral hemorrhage from a trochlear nerve schwannoma.

元の言語English
ページ(範囲)E791; discussion E791
ジャーナルNeurosurgery.
58
発行部数4
出版物ステータスPublished - 01-04-2006
外部発表Yes

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All Science Journal Classification (ASJC) codes

  • Surgery
  • Clinical Neurology

これを引用

Ohba, S., Miwa, T., & Kawase, T. (2006). Trochlear nerve schwannoma with intratumoral hemorrhage: case report. Neurosurgery., 58(4), E791; discussion E791.