Bilateral Superior Semicircular Canal Dehiscence without Signs of Vestibular Involvement about a Case

Superior semicircular canal dehiscence (SSCD) is a rare entity recently described whose typical clinical symptomatology represented by dizziness triggered variation of pressure. We reported case SSCD which was diagnosed thanks to computed tomography (CT) scan the petrous bone conducted systematically in front mixed deafness with normal eardrum. The bilateral and revealed on left side perception right eardrum without notion vertigo. cervical vestibular evoked myogenic potential (cVEMP) an ultra-high resolution CT bones coronal sagittal sections allowed diagnosis. should be considered presence any conductive or hearing loss submillimetric allows