Neurocytoma of the VIIIth cranial nerve: Case report

Onder Onguru, Özlem Kurtkaya-Yapicier, Bernd W. Scheithauer, Patrick Luetmer, Peter C. Burger, S. J. Mann, Steven A. Harvey

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

OBJECTIVE AND IMPORTANCE: Neurocytomas are uncommon tumors of the CNS. To date, none have been described in association with a cranial nerve. We described the clinico-pathological features of an example arising in the cochlearvestibular portion of the VIIIth nerve with extension into the cerebellopontine angle. CLINICAL PRESENTATION: The patient, a 42-year-old female, presented approximately 6 months ago with several episodes of worsening dizziness. On magnetic resonance imaging studies, a 2 cm enhancing lesion occupying the left internal auditory canal and protruding into the cerebello-pontine angle cistern was detected with signal characteristics suggestive of vestibular neuroma. INTERVENTION: At surgery, the tumor was seen to originate from the cochlear-vestibular nerve bundle laying within the internal auditory canal, extended laterally to the level of the fundus and 4 mm medially into the cerebellopontine angle. No dural attachment was noted. With use of sharp dissection and bipolar cautery, portions of the tumor within the auditory canal were debulked. CONCLUSION: A unique example of a neurocytoma in association with a cranial nerve is documented. Possible explanations for the occurrence are explored. The topography of neurocytomas continues to expand.

Original languageEnglish (US)
Pages (from-to)1065
Number of pages1
JournalNeurosurgery
Volume57
Issue number5
DOIs
StatePublished - Nov 2005

Keywords

  • 8th nerve
  • Immunohistochemistry
  • Neurocytoma
  • Neuroimaging

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

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