The middle ear is involved, although it may extend to the external auditory canal if there is tympanic membrane perforation.

Also symmetric, bilateral stenosis or atresia of the external auditory canals is described.

Sometimes also the external auditory canal or middle ear can be treated.

Even in cases with normal auricles and open external auditory canals, the ossicular chain is often malformed.

Through irritation of the nerve, diseases of the external auditory canal (wax, for example) can also cause cough.

This tumor only affects the outer 1/3 to 1/2 of the external auditory canal as a primary site.

Cold or warm water or air is irrigated into the external auditory canal, usually using a syringe.

The lateral or horizontal canal (external semicircular canal) is the shortest of the three canals.

Foreign body in the external auditory canal (not always)

Checks the re-infection from external auditory canal and eustachian tube.