Cochlear implant magnet displacement during magnetic resonance imaging.
OBJECTIVE
Magnet displacement is a rare but possible complication in patients with cochlear implants. We report 1 case in a young child that occurred during magnetic resonance imaging scanning, despite precautionary measures taken by the surgeon and the radiographer.


METHODS
Retrospective case report.


METHODS
This case is presented by the ENT Department of Armand Trousseau Paediatrics Hospital, Paris, France.


METHODS
An 8-year-old child, implanted with a Freedom Contour Nucleus cochlear implant, was referred for a 1.5-T cerebral magnetic resonance imaging because of a progressive neurologic disorder.


CONCLUSIONS
This rare complication underlines the importance of risk information and preventive measures required, even in case of compatible devices, for performing a magnetic resonance imaging examination in patients wearing a cochlear implant with removable magnet.
Deneuve
Sophie
S
ENT Department-Hôpital d'Enfants Armand Trousseau, Paris, France. fdeneuve@clubinternet.fr
Loundon
Nathalie
N
Leboulanger
Nicolas
N
Rouillon
Isabelle
I
Garabedian
Erea Noel
EN
D002648:Child; D003054:Cochlear Implants; D005548:Foreign-Body Migration / Q000209:etiology* / Q000601:surgery; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis* / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000009:adverse effects*; D008280:Magnetics; D008297:Male