[Superior semicircular canal dehiscence syndrome: report of three cases]

Kulak Burun Bogaz Ihtis Derg. Sep-Oct 2011;21(5):276-81. doi: 10.5606/kbbihtisas.2011.041.
[Article in Turkish]


Superior semicircular canal dehiscence syndrome is a newly defined and rare disease. The disease shows itself with vertigo and nystagmus induced by loud noise and pressure. Vertigo and nystagmus induced by loud noise is named as Tullio's phenomenon and nystagmus induced by pressure is named as Hennebert's sign. The definitive diagnosis is made by the demonstration of bone defect in superior semicircular channel with high-resolution computed tomography.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Diagnosis, Differential
  • Female
  • Humans
  • Labyrinth Diseases / complications
  • Labyrinth Diseases / diagnosis*
  • Labyrinth Diseases / diagnostic imaging
  • Male
  • Middle Aged
  • Nystagmus, Pathologic / etiology
  • Semicircular Canals / diagnostic imaging*
  • Syndrome
  • Tomography, X-Ray Computed
  • Vertigo / etiology