Unilateral conductive hearing loss in a patient with history of head injury. On examination, tympanic membrane is normal and mobile. The cause for deafness could be
Acquired causes of conductive hearing loss include: Perforation of tympanic membrane Fluid in the middle ear-acute otitis media, serous otitis media, hemotympanum Mass in the middle ear (benign/malignant) Disruption of ossicles-trauma to ossicular chain, CSOM, cholesteatoma Fixation of ossicles-otosclerosis, tympanosclerosis Eustachian tube blockage
Collection of fluid in the middle ear
Otosclerosis
Dislocation of the incudostapedial joint
ASOM