* Cholesteatoma is uncommon sickness that grow in the middle ear that should be remove.
* Mastoiditis(유양돌기염) is an inflammation(염증) in mastoid(유양돌기) which is a little skull found in the inner ear.
* Ethmoid(사골) and Sphenoid(쐐기골, 성상골) is growing in the inner part of our nose that you can't bread well.
