Journal of Otology & RhinologyISSN: 2324-8785

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Case Report, J Otol Rhinol Vol: 3 Issue: 6

Cochlear-Internal Carotid Artery Dehiscence with a Pathologic Electrocochleography

P. Mittmann*, A. Ernst and I. Todt
Department of Otolaryngology, Head and Neck Surgery, Unfallkrankenhaus Berlin, Germany
*Corresponding author : Philipp Mittmann
Unfallkrankenhaus Berlin, Department of Otolaryngology, Head and Neck Surgery, Warenerstr.712683 Berlin, Germany
Tel: +493056814301; Fax: +493056814303
E-mail: [email protected]
Received: April 22, 2014 Accepted: October 09, 2014 Published: December 12, 2014
Citation: Mittmann P, Ernst A, Todt I (2014) Cochlear-Internal Carotid Artery Dehiscence with a Pathologic Electrocochleography. J Otol Rhinol 3:6. doi:10.4172/2324-8785.1000201

Abstract

Cochlear-Internal Carotid Artery Dehiscence with a Pathologic Electrocochleography

Dehiscences of labyrinthine structures are mainly defects of the semicircular canals. Cochlear-carotid dehiscences are rare and were first described in 2004. We present the case of a 58-yearold woman presented at our clinic with intermittent vertigo and nonpulsatile tinnitus on the right side for over 6 months. Vertigo could not be associated with any specific activity or movement and was not provokable. High resolution computed tomography showed a bony dehiscence of the apical cochlea on the right side in contact with the internal carotid artery. Magnetic resonance imaging showed contact between the cochlea and the internal carotid artery. Under oral medication with Betahistin 12 mg three times a day in combination with antihypertensive medication, symptoms were regressive. Three months after starting therapy the patient's symptoms were almost absent. A dehiscence of the bony cochlea is a rare malformation that should be kept in mind before stapes surgery. The clinical pattern is variable and shows similarities to SCDS. Treatment options are limited.

Keywords: Cochlear dehiscence; Internal carotid artery; Tinnitus; Vertigo

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