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June 1997

Multicentric Eighth Cranial Nerve Schwannoma

Author Affiliations

From the Department of Otolaryngology—Head and Neck Surgery, University Hospital, Zurich, Switzerland. Dr Li is now with the Department of Otolaryngology, The Johns Hopkins University, Baltimore, Md.

Arch Otolaryngol Head Neck Surg. 1997;123(6):650-653. doi:10.1001/archotol.1997.01900060102018

To our knowledge, only 3 histopathologically proved cases of multicentric eighth cranial nerve schwannoma have been described in the literature since 1981. We describe a patient with 2 isolated eighth cranial nerve schwannomas arising separately from the left cochlea and internal auditory canal. These 2 tumors were diagnosed using magnetic resonance imaging prior to resection, and the diagnosis was further confirmed by intraoperative findings and histopathologic analysis. The genetic molecular basis and clinical features of this rare tumor have been overlooked. The value of the transotic approach for total tumor removal is emphasized.

Arch Otolaryngol Head Neck Surg. 1997;123:650-653

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