(SCDS) a rare condition characterized by sound- or pressure-induced vertigo (see Tullio phenomenon), hearing loss, autophony, and a sense of fullness in the affected ear. It is associated with absence of the bone that normally lies over the superior semicircular canal. Diagnosis involves computerized tomography and vestibular evoked myogenic potential testing. Treatment involves surgery to repair the bony defect.
Subjects: Medicine and Health.