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Skull base surgery. 1995 January; 5(1): 33–36.
PMCID: PMC1661781

Atypical Invasion of the Temporal Bone in Vestibular Schwannoma

Abstract

Vestibular schwannomas typically present with erosion of the temporal bone that is limited to the boundaries of the internal auditory canal. Four patients with extensive erosion, excavations, and pseudosatellite defects in the petrous apex are presented. These bony changes extended anteriorly up to the level of the carotid canal. The patients did not have stigmata of neurofibromatosis type 2 and they did not have systemic bony disorders. The tumors did not show any unusual histopathologic changes. Such invasive tumors present an unusual surgical challenge compared to vestibular schwannomas with a more typical pattern of bony erosion. Radiological features and surgical considerations relevant to vestibular schwannomas with this rare presentation are discussed.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.
  • Linthicum FH, Jr, Brackmann DE. Bilateral acoustic tumors. A diagnostic and surgical challenge. Arch Otolaryngol. 1980 Dec;106(12):729–733. [PubMed]
  • Feghali JG, Kantrowitz AB. The transcranial translabyrinthine approach to acoustic neuromas. Skull Base Surg. 1994;4(3):132–135. [PMC free article] [PubMed]
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