High jugular bulb and conductive hearing loss.
A high jugular bulb is often discovered as an incidental finding that is asymptomatic. Conductive hearing loss in association with this anomaly may occur, but has been reported infrequently in the literature. We report five cases of high jugular bulb and associated conductive hearing loss. Mechanisms to explain the conductive hearing loss include contact of the jugular bulb with the tympanic membrane, interference with the ossicular chain, and obstruction of the round window niche. The operative findings, radiographic and audiometric data that support these mechanisms of conductive hearing loss are presented.
Weiss
R L
RL
Department of Otolaryngology and Communicative Disorders, Long Island Jewish Medical Center, New Hyde Park, NY 11042, USA.
Zahtz
G
G
Goldofsky
E
E
Parnes
H
H
Shikowitz
M J
MJ
D000158:Acoustic Impedance Tests; D000328:Adult; D002648:Child; D018424:Cholesteatoma, Middle Ear / Q000175:diagnosis; D003937:Diagnosis, Differential; D004429:Ear Ossicles / Q000473:pathology; D005260:Female; D006314:Hearing Loss, Conductive / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D006801:Humans; D007601:Jugular Veins / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D018810:Magnetic Resonance Angiography; D008297:Male; D012405:Round Window, Ear / Q000473:pathology; D014057:Tomography, X-Ray Computed; D014432:Tympanic Membrane / Q000473:pathology