Abstract
Abstract
Objective
Report a case of localized necrotizing meningoencephalitis as the cause of functional hearing loss after cochlear implant (CI) surgery.
Case report
A 12-year-old with bilateral CI presented to our quaternary center due to severe functional hearing loss after 11 years since left ear CI surgery. CT with contrast was conducted showing a CPA tumor-like mass. Pre-operative computed tomography (CT) scans and magnetic resonance imaging (MRI) performed at the age of 1 year showed no inner ear abnormalities and in particular no evidence of a tumor in the cerebellopontine angle (CPA).
Conclusion
Following removal of the CI and the mass, histopathological, immunohistochemical and cultural examinations revealed a necrotizing meningoencephalitis, with the CI electrode as the focus.
Funder
Università degli Studi di Milano
Publisher
Springer Science and Business Media LLC
Subject
General Medicine,Otorhinolaryngology
Reference18 articles.
1. Arndt S, Schild C, Doostkam S, Birkenhäger R, Laszig R, Prinz M, Aschendorff A (2012) Necrotizing meningoencephalitis mimicking cerebellopontine angle tumor as late complication following cochlear implantation. Cochlear Implants Int 13(1):60–64
2. Food and Drug Administration (2009) Public health web notification: risk of bacterial meningitis in children with cochlear implants. http://www.fda.gov/cdrh/safety/cochlear.html 9 Aug 2009
3. Antonelli PJ, Lee JC, Burne RA (2004) Bacterial biofilms may contribute to persistent cochlear implant infection. Otol Neurotol 25:953–957
4. Gristina AG, Costerton JW (1985) Bacterial adherence to biomaterials and tissue. The significance of its role in clinical sepsis. J Bone Jt Surg Am 67:264–273
5. Macassey E, Dawes P (2008) Biofilms and their role in otorhinolaryngological disease. J Laryngol Otol 122:1273–1278