title: Otoacoustic emissions in an aberrant internal carotid artery: a case report.
abstract: A 52-year-old Korean woman who complained of impaired hearing and tinnitus of the left ear was diagnosed with an aberrant internal carotid artery (ICA) in the middle ear using a temporal bone high resolution CT (HRCT) scan. Upon otoscopic examination, her left eardrum was found to be in contact with a mass in the middle ear cavity. Upon audiometric evaluation, a mild conductive hearing impairment was documented, and a discrepancy in the results of otoacoustic emissions (OAEs) was found for the left ear. This case report studies the aberrant ICA in the middle ear that revealed abnormal OAE findings.
authors.affiliation: Department of Otolaryngology and Head and Neck Surgery, Chonnam National University Medical School, 8 Hackdong Donggu, 501-190 Gwangju, Korea.
authors.forename: Hyong Ho
authors.initials: HH
authors.lastname: Cho
authors.forename: Yong Bum
authors.initials: YB
authors.lastname: Cho
mesh_terms: D001299:Audiometry; D002343:Carotid Artery, Internal; D002828:Choristoma / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D004432:Ear, Middle / Q000000981:diagnostic imaging*; D005260:Female; D006311:Hearing Disorders / Q000150:complications / Q000175:diagnosis*; D006801:Humans; D008875:Middle Aged; D017084:Otoacoustic Emissions, Spontaneous / Q000502:physiology*; D011859:Radiography; D012720:Severity of Illness Index; D013701:Temporal Bone / Q000000981:diagnostic imaging*; D014012:Tinnitus / Q000150:complications / Q000175:diagnosis*