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Res Vestib Sci : Research in Vestibular Science



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HOME > Res Vestib Sci > Volume 8(1); 2009 > Article
Case Report A Case of Cerebellopontine Angle Osteoma Causing Sudden Hearing Loss with Vertigo
Woo Jin Bae, Seung Hern Ha, Sun Min Park, Chang Woo Kim

Department of Otorhinolaryngology-Head and Neck Surgery, Hallym University College of Medicine, Seoul, Korea.
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Osteomas arising from the internal auditory canal (IAC) and locating in the cerebellopontine angle (CPA) are rare. These tumors may cause compression of the IAC with varying degree of hearing loss, vertigo, and tinnitus but sometimes asymptomatic. Here we present a 60-year-old female patient presented with a hearing loss of sudden onset in her right ear and recurrent dizziness of whirling type. Magnetic resonance imaging and computed tomography revealed CPA osteoma arising from the porus of the IAC. Osteomas should be considered as differential diagnosis in patients with sudden hearing loss and vertigo. Key Words: Osteoma; Cerebellopontine angle; Hearing Loss, Sudden

Res Vestib Sci : Research in Vestibular Science