Superior semicircular canal dehiscence syndrome by the superior petrosal sinus.

@article{Koo2010SuperiorSC,
  title={Superior semicircular canal dehiscence syndrome by the superior petrosal sinus.},
  author={Ja-won Koo and Sung Kwang Hong and Dong Kyu Kim and Ji Soo Kim},
  journal={Journal of neurology, neurosurgery, and psychiatry},
  year={2010},
  volume={81 4},
  pages={465-7}
}
Thinning or dehiscence of the superior semicircular canal may occur on the middle cranial fossa floor or adjacent to the superior petrosal sinus (SPS). However, no symptomatic cases of superior canal dehiscence by SPS have been previously described. A 45-year-old woman presented with left-side pulsating tinnitus, autophony and disequilibrium. Examination showed conductive hearing loss and decreased threshold of vestibular evoked myogenic potential in the left side. Sound and vibration stimuli… CONTINUE READING

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