bilateral superior semi-circular canal dehiscence presenting as conductive hearing loss with vestibular symptoms: a client centre case report

Background: superior semicircular canal dehiscence (sscd) is a rare bone defect in thepetrous part of the temporal bone. in this syndrome, a third window is created between themiddle cranial fossa and the bony labyrinth of the inner ear which can lead to stimulation ofthe vestibular system by sound. patients usually have symptoms such as vertigo, imbalance,autophony, pulsatile tinnitus, and aural fullness. the clinical symptoms of this disease varyfrom person to person.the case: this study reports a case of a rare bilateral sscd in a 39-year-old woman withimbalance and autophony problems. the audiological findings showed a bilateral mildconductive hearing loss at low frequencies with symptoms of vertigo and torsional nystagmus.the sscd was diagnosed by computed tomography. then, the patient underwent bone repairsurgery. auditory and balance tests were performed again after the surgery to evaluate theextent of recovery.conclusion: the sscd can be diagnosed by using the mentioned test battery. by choosingthe appropriate treatment methods and following up of the outcomes, most of the problems ofpatients with sscd can be solved.