[Otosclerosis : clinical presentation and management].

Otosclerosis is characterized by pathological remodeling of the bone of the otic capsule. Classically, foci of pathological bone leads to progressive fixation of the stapes, resulting in conductive hearing loss. Involvement can be uni- or bilateral. Otoscopy is normal. -Hypoacusis generally appears between the age of 30 to 50, regularly with tinnitus. Sometimes, the inner ear is also affected, with sensori-neural hearing loss or vestibular impairment (vertigo). Successful hearing rehabilitation can be achieved with hearing aids or stapes surgery (stapedotomy). Cochlear implantation is considered in cases of severe or profound sensorineural hearing loss. High resolution CT-scan or Cone Beam CT confirm the diagnosis and optimal planning of surgical treatment.