Superior semicircular canal dehiscence - probable

Case contributed by Dr Dalia Ibrahim

Presentation

Dizziness & disequilibrium.

Patient Data

Age: 40 years
Gender: Male

Marked thinning (dehiscence) of the bony roof of the left superior semicircular canal, compared to the normal bony roof at the right side.

No retro-cochlear lesions.

Modality: Annotated image

Dehiscence of the bony roof of the left superior semicircular canal (Red arrows), compared to the normal bony roof at the right side (Yellow arrows).

Case Discussion

Superior semicircular canal dehiscence- MRI 

Diagnosis needs to be confirmed by further CT scan.

Superior semicircular canal dehiscence syndrome (SCDS) is a recently described inner ear abnormality,  where a clinical dysequilibrium phenomenon is associated with absence of the bony covering of the superior semicircular canal (SSC)

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Case Information

rID: 31360
Case created: 3rd Oct 2014
Last edited: 13th Mar 2016
System: Head & Neck
Inclusion in quiz mode: Included

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