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Fistula of the Cochlear Labyrinth in Noncholesteatomatous Chronic Otitis Media

de Zinis, Luca O. Redaelli*; Campovecchi, Chiara*; Gadola, Elisa

doi: 10.1097/01.mao.0000169638.48193.b2
Middle Ear & Mastoid Disease

Objective: To discuss the clinical aspects and management of promontory fistula of the cochlear labyrinth.

Study Design: Case report and review of the literature.

Setting: University hospital, tertiary referral center.

Patient, Intervention, and Results: The authors describe an unusual case of cochlear fistula localized to the promontory discovered during tympanoplasty for noncholesteatomatous chronic otitis media in a 59-year-old woman. Bone conduction was slightly impaired after operation and hearing improved after a revision myringoplasty performed for reperforation.

Conclusion: Erosion of the bone of the labyrinth can also be observed in noncholesteatomatous otitis media. The presence of a fistula is not always associated with profound hearing loss. Overlying pathologic tissue can be removed without damaging the membranous labyrinth.

Departments of *Otolaryngology-Head and Neck Surgery and †Radiology, University of Brescia, Brescia, Italy

Address correspondence and reprint requests to Luca O. Redaelli de Zinis, M.D., Department of Otorhinolaryngology, University of Brescia, Piazzale Spedali Civili 1, 25123 Brescia, Italy. E-mail:

© 2005 Otology & Neurotology, Inc.