title: Dehiscence of the posterior and superior semicircular canal presenting in pregnancy.
abstract: OBJECTIVE
  We present an interesting case of superior and posterior semicircular canal dehiscence in pregnancy.
  
  
  METHODS
  We present a case report and a review of the world literature concerning semicircular canal dehiscence.
  
  
  METHODS
  A 34-year-old woman presented with sound and pressure induced vertigo at 22 weeks gestation. A thinly sliced computed tomography (CT) scan of the petrous temporal bones viewed with coronal reconstructions was performed post-partum. This showed the presence of both left superior canal and posterior canal dehiscence.
  
  
  CONCLUSIONS
  To our knowledge this is the first reported case of semicircular canal dehiscence in pregnancy. The diagnosis of semicircular canal dehiscence should be suspected in pregnant patients with sound induced vertigo.
authors.affiliation: ENT Department, Nottingham University Hospitals, Nottingham, UK.
authors.forename: T
authors.initials: T
authors.lastname: Meehan
authors.forename: C
authors.initials: C
authors.lastname: Nogueira
authors.forename: D
authors.initials: D
authors.lastname: Rajenderkumar
authors.forename: J
authors.initials: J
authors.lastname: Shah
authors.forename: D
authors.initials: D
authors.lastname: Stephens
authors.forename: K
authors.initials: K
authors.lastname: Dyer
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000473:pathology*; D011859:Radiography; D012665:Semicircular Canals / Q000473:pathology*; D013701:Temporal Bone / Q000000981:diagnostic imaging