title: Investigation of temporal bone asymmetry in cases with unilateral tinnitus: morphometric and multicentric clinical study.
abstract: The aim of this multicentric study was to compare the anatomical structures of temporal bone in patients with unilateral tinnitus with their healthy ears. We also aimed at evaluating whether age and gender-related asymmetrical changes occur in temporal bones or not. Fifty two ears of 26 patients who had unilateral tinnitus were included into the retrospective study. The patients who had subjective nonpulsatile tinnitus and who previously had temporal computed tomography according to their file records were accepted to study. Temporal CT scans and audiometric results of patients were examined retrospectively. Middle ear volume, diameter of internal acoustic meats and diameter of jugular bulb were evaluated by both anatomist and radiologist, interobserverly. Internal acoustic meats and jugular bulb were found larger in the ears that had tinnitus than healthy ears; however, there was no statistically significance. The stereological morphometrical study of temporal bone asymmetry in humans correlate with sex is of importance for both otolarygologs and anatomists. These results will contribute to data on middle ear volume, internal acustic meats and jugular bulb sizes.
authors.affiliation: Department of Anatomy, Dokuz Eylul University School of Medicine, Turkey . nuketmas@gmail.com
authors.forename: Orhan Kemal
authors.initials: OK
authors.lastname: Kahveci
authors.forename: Nuket
authors.initials: N
authors.lastname: Gocmen-Mas
authors.forename: Nazan
authors.initials: N
authors.lastname: Okur
authors.forename: Mustafa Deniz
authors.initials: MD
authors.lastname: Yılmaz
authors.forename: Oktay
authors.initials: O
authors.lastname: Ozel
authors.forename: Fatih
authors.initials: F
authors.lastname: Yucedağ
authors.forename: Ayse Canan
authors.initials: AC
authors.lastname: Yazici
mesh_terms: D000328:Adult; D000368:Aged; D000715:Anatomy / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013701:Temporal Bone / Q000002:abnormalities* / Q000000981:diagnostic imaging*; D014012:Tinnitus / Q000000981:diagnostic imaging* / Q000473:pathology*; D014057:Tomography, X-Ray Computed / Q000379:methods; D055815:Young Adult