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  • Title: Perilimphatic fistula test: a video clip demonstration.
    Author: Casale M, Errante Y, Sabatino L, Incammisa A, Salvinelli F, Quattrocchi CC.
    Journal: Eur Rev Med Pharmacol Sci; 2014; 18(23):3549-50. PubMed ID: 25535121.
    Abstract:
    Perilymphatic fistula (PLF) is an abnormal condition in which a communication is present between the perilymphatic space of the inner ear and the middle ear or mastoid, secondary to a dehiscence in the otic capsule, oval or round window. LF may induce hearing loss, tinnitus, aural fullness, vertigo, disequilibrium, or a combination of these symptoms; the vagueness of symptoms caused by PLF and the lack of specificity of clinical signs and symptoms make the diagnosis elusive. We report a video of a positive PLF test induced by the application of pressure on the tragus, just anterior to the left external auditory canal in a patient with cholesteatoma and PLF of lateral semicircular canal confirmed by CT scan imaging. https://www.youtube.com/watch?v=x5MhSILF9O4.
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