What Is a Mastoidectomy?

The purpose of mastoidectomy is to completely remove the lesions of the tympanic cavity, tympanic sinus, and mastoid cavity, remove the posterior ear canal and the upper bone wall, and form a common cavity between the mastoid cavity, tympanic sinus, tympanic cavity, and external ear canal, which destroys the external ear canal and middle ear. Anatomical structure, poor hearing after surgery.

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