Canadian Medical Guide > Diseases > Otorhinolaryngologic Diseases > Ear Diseases Terms and Definitions




Ear Diseases

Medical Definition: Diseases of the ear, general or unspecified.
Guide Notes: GEN only; NIM with coord for diseases of specific parts; /diag: consider also DIAGNOSTIC TECHNIQUES, OTOLOGICAL; inflamm dis = OTITIS and its specifics
Ear Diseases Categories.
Canadian Medical Guide Definition Cholesteatoma, Middle Ear - Cholesteatoma of the middle ear, usually associated with chronic infection, and commonly affecting the tympanum, epitympanum, and antrum.
Canadian Medical Guide Definition Ear Deformities, Acquired - Distortion or disfigurement of the ear caused by disease or injury after birth.
Canadian Medical Guide Definition Earache - Pain in the ear.
Canadian Medical Guide Definition Hearing Disorders - Conditions that impair the transmission or perception of auditory impulses and information from the level of the ear to the temporal cortices, including the sensorineural pathways.
Canadian Medical Guide Definition Labyrinth Diseases
Canadian Medical Guide Definition Otitis - Inflammation of the ear, which may be marked by pain, fever, abnormalities of hearing, hearing loss, tinnitus, and vertigo. Inflammation of the external ear is OTITIS EXTERNA; of the middle ear, OTITIS MEDIA; of the inner ear, LABYRINTHITIS. (From Dorland, 27th ed)
Canadian Medical Guide Definition Otosclerosis - The formation of spongy bone in the labyrinth capsule. The ossicles can become fixed and unable to transmit sound vibrations, thereby causing deafness.
Canadian Medical Guide Definition Retrocochlear Diseases - Diseases of the VESTIBULOCOCHLEAR NERVE. Retrocochlear refers to the eighth cranial nerve and cerebellopontine angle as opposed to the cochlea. (Dorland, 28th ed)
Canadian Medical Guide Definition Tympanic Membrane Perforation - An opening in the tympanic membrane usually caused by trauma. There are four general categories: compression injuries (the most common and usually the result of a blow to the ear); instrumentation injuries (the second most common, usually inadvertent, caused often by cotton swabs or bobby-pins); burn-slag injuries (frequently seen in industry, from hot metal from machines or welding); and blast injuries (usually seen during war or as a result of terrorist bombing). In the absence of infection, most traumatic tympanic membrane perforations heal spontaneously. Persistent perforation is usually a manifestation of tubotympanitis, an inflammation of the eustachian tube and tympanic cavity (middle ear). (From Paparella, Shumrick, Gluckman, and Meyerhoff: Otolaryngology, vol. II, 3d ed, pp1363-65)

Ear Diseases Medical Definitions and Terms

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