A narrowing of the auditory canal that develops after birth is acquired

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Stenosis of the external ear canal is a progressive narrowing of the auditory canal that occurs after birth due to various causes such as chronic inflammation, infections, and trauma. It can lead to hearing loss and other ear-related problems if left untreated. Auricular perichondritis refers to inflammation of the cartilage of the outer ear, while exostosis of the external ear refers to the overgrowth of bony protrusions in the ear canal. Ankylosis of ear ossicles refers to the fusion of the small bones in the middle ear, which can also result in hearing impairment.

A Narrowing of the Auditory Canal That Develops After Birth