Presentation
MVA, the patient has hearing problems, the study was done 2 weeks after the trauma.
Patient Data
Age: 50 years
Gender: Male
From the case:
Bilateral temporal bone fractures
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Right ear shows a longitudinal fracture line crossing the mastoid cavity and bony labyrinth involving the following structures:
- incudo-malleolar subluxation
- posterior subluxation of the stapes relative to the oval window niche
- crossing of the vestibule and the apex of the internal auditory canal
- dehiscent tympanic segment of the facial nerve canal lying in front of the oval window niche
- fracture line is also crossing the round window niche
Left ear shows a longitudinal fracture line crossing the mastoid cavity, root of external auditory canal, the vestibule and apex of the internal auditory canal:
- the tympanic segment of the facial canal is dehiscent, lying in the oval window niche
- intra-cochlear ossification involving the apical cochlear turns (incidental note)
From the case:
Bilateral temporal bone fractures
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Annotated images.
Case Discussion
Case courtesy of Prof M Eid (Alexandria University, Egypt).