A perilymph fistula also referred to as PLF is an irregular communication between the perilymph-filled inner ear as well as the middle ear cavity, intracranial, and mastoid cavity. Furthermore, a perilymph fistula is formed when the integrity of the round window is compromised and it can be trauma-induced. It can occur with no known cause. Precisely, it is defined as a kind of disease that occurs when there is a tear in the round or oval window separating the mid ear from the inner ear. Furthermore, PLF commonly causes vestibular and cochlear symptoms.
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