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Cochlear-Internal Canal and Cochlear-Facial Dehiscence: A Novel Entity
Octavio Garaycochea1, Pablo D Domínguez2, Manuel Manrique1
1Department of Otorhinolaryngology, Clinica Universidad de Navarra, University of Navarra, Pamplona, Spain.
The Journal of International Advanced Otology
|September 27, 2018
Summary
This case study reports a novel dehiscence of the otic capsule involving the cochlea and internal auditory canal, alongside a cochlear-facial dehiscence. This finding is significant for cochlear implant surgery and understanding inner ear anatomy.
Area of Science:
- Neuroscience
- Otolaryngology
- Radiology
Background:
- Otic capsule dehiscence can affect the cochlea.
- Previous descriptions have focused on cochlear involvement.
Observation:
- A patient with Meniere's disease presented with severe hearing loss.
- Cerebrospinal fluid gusher occurred during cochlear implant surgery.
- Preoperative imaging showed no abnormalities.
Findings:
- A novel dehiscence involving the cochlea and internal auditory canal was identified.
- A cochlear-facial dehiscence was also present.
- Postoperative CT confirmed bony dehiscence at two otic capsule levels.
Implications:
- This case expands the known spectrum of otic capsule dehiscence.
- It highlights potential intraoperative complications during cochlear implantation.
- Accurate preoperative and intraoperative identification is crucial for patient safety.
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