A normal brain MRI: ...is reassuring. You may have dysfunction in the Eustachian tube, a tube that maintains equal pressure between the inner & middle ear and the outside world. Occasionally tiny air bubbles get trapped in the Eustachian tube, causing a popping or crackling sensation. If you get hearing loss, ringing in the ear or difficulty with balance, a more focused MRI to rule out acoustic neuroma can be done.
Answered 11/28/2017
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