otosclerosis

A disease of the ear in which the movement of the stapes within the oval window becomes impeded by abnormal deposits of spongy bone, leading to a progressive loss of hearing.

A hardening of the tissues and ankylosis of the ossicles of the middle ear.

A growth of spongy bone substance in the capsule of the internal ear.

hereditary disorder in which ossification of the labyrinth of the inner ear causes tinnitus and eventual deafness