Intraosseous Petrous Apex Schwannoma: Case Report and Review of Literature

Peter A. Rozman, Carolina G. Benjamin, Douglas Kondziolka, Chandranath Sen, J. Thomas Roland, David Zagzag, Matija Snuderl, David Gordon

Research output: Contribution to journalArticlepeer-review


Background: Intraosseous petrous apex schwannomas are an exceedingly rare entity; little is known about their epidemiology, natural history, and postoperative outcomes. Case Description: Here, we present the fourth known case of a primary intraosseous schwannoma of the petrous apex: a 68-year-old woman presenting with diplopia, facial numbness, progressive intermittent vertigo, tinnitus, diminished hearing, and ataxia. She underwent a transtemporal approach for subtotal resection of the tumor with subsequent stereotactic radiosurgery. Conclusions: Our 2-year follow-up demonstrates slow growth and success of multimodal management in the treatment of these tumors. We review the 3 prior reports of petrous apex schwannomas and identify unifying radiographic and clinical characteristics to aid future diagnostic considerations of lesions of the petrous apex.

Original languageEnglish (US)
Pages (from-to)182-187
Number of pages6
JournalWorld neurosurgery
StatePublished - Dec 2019
Externally publishedYes


  • Intraosseous schwannoma
  • Petrous apex schwannoma
  • Radiosurgery
  • Transtemporal approach

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology


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