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CASE #4: left-sided superior canal dehiscence
This is a 38 year old man who presented with a history of worsening left-sided hearing loss, autophony and aural fullness and intractable dizziness and vertigo that was worsened with weight lifting and loud low frequency sounds.
High resolution temporal bone CT scans revealed a large tegmen defect and a left-sided superior canal dehiscence.
The following is a three-dimensional model of the left temporal bone. It is interactive and requires Quicktime player to view.
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Above, Interactive three-dimensional temporal bone CT model showing left-sided SSCD in this 38 year old man with hearing loss, autophony, Hennebert's and Tullio's signs. RED DOTS indicate the left superior canal dehiscence. Note the surrounding dehiscence of the tegmen. (Requires Quicktime, 18MB file, may take several minutes to load).
Doesn't open on your Windows PC? Download Quicktime for Windows XP or Vista here
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