Epidermoid Tumor of the Cerebellopontine Angle Presenting with Selective Sudden Hearing Loss. Intraoperative Evidence of a Pearl Tumor Infiltrating and Compressing the Cochlear Nerve

A. Alfieri; S. Simmermacher; J. Prell; C. Strauss; C. Scheller

doi:10.1055/s-0032-1304507

Journal of Neurological Surgery Part A: Central European Neurosurgery, Inhaltsverzeichnis

J Neurol Surg A Cent Eur Neurosurg 2012; 73(01): 56-58
DOI: 10.1055/s-0032-1304507

Case Report

Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Epidermoid Tumor of the Cerebellopontine Angle Presenting with Selective Sudden Hearing Loss. Intraoperative Evidence of a Pearl Tumor Infiltrating and Compressing the Cochlear Nerve^[*]

A. Alfieri

¹Department of Neurosurgery, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany

,

S. Simmermacher

¹Department of Neurosurgery, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany

,

J. Prell

¹Department of Neurosurgery, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany

,

C. Strauss

¹Department of Neurosurgery, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany

,

C. Scheller

¹Department of Neurosurgery, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany

› Institutsangaben

Abstract

Epidermoid tumors of the cerebellopontine angle are associated with a variety of symptoms, usually attributed to compression and displacement of involved cranial nerves. The authors present a case of a large epidermoid tumor in the left cerebellopontine angle with sudden hearing loss and tinnitus. The intraoperative finding of migration of two tumor pearls into the cochlear nerve was the origin of the clinical sign. The patient improved remarkably after removal of the tumor. This case demonstrates the mechanism for selective hearing loss associated with the large cerebellopontine angle.

Keywords

epidermoid tumors - hearing loss - cerebellopontine angle

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Referenzen

References
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Epidermoid Tumor of the Cerebellopontine Angle Presenting with Selective Sudden Hearing Loss. Intraoperative Evidence of a Pearl Tumor Infiltrating and Compressing the Cochlear Nerve[*]

Epidermoid Tumor of the Cerebellopontine Angle Presenting with Selective Sudden Hearing Loss. Intraoperative Evidence of a Pearl Tumor Infiltrating and Compressing the Cochlear Nerve^[*]