Patulous Eustachian Tube Dysfunction Eustachian tube dysfunction (ETD) is often regarded as a problem of the tube not opening properly, but a patulous eustachian tube (PET) is another type of ETD. Though clinically less

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• Otology
• Head and neck
• Patulous Eustachian tube
• Audiology
• Pediatrics
• Eustachian tube
• Autophony
• Otitis media
• Tympanostomy tube
• Medicine
• Human anatomy
• Auditory system