perilymphatic fistula


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Related to perilymphatic fistula: Perilymph fistula, labyrinthine concussion

perilymphatic fistula

a fistula between the vestibule of the inner ear and the middle ear through which perilymph can leak, resulting in auditory and vestibular disturbances; common sites for perilymphatic fistula are through or around the oval window including through or around the footplate of the stapes or through the round window through the round window membrane.

per·i·lym·phat·ic fis·tu·la

(per'i-lim-fat'ik fis'chū-lă)
A fistula between the vestibule of the inner ear and the middle ear through which perilymph can leak, resulting in auditory and vestibular disturbances; common sites for perilymphatic fistula are the oval window through or around the footplate of the stapes or the round window through the round window membrane.

perilymphatic fistula

A canal through which inner ear fluid may leak into the middle ear that may produce sudden hearing loss, tinnitus, or vertigo. The lesion, which can arise congenitally, after trauma, or by erosion, is one of the few examples of sensorineural hearing loss that can be repaired with surgery to the cochlear aqueduct.
See also: fistula
References in periodicals archive ?
Recommendations re controversial with respect to analogous conditions associated with perilymphatic fistula, such as congenital lesions and barotrauma.
In these patients, the presence of a sensorineural hearing loss or signs or symptoms of vestibular injury is suggestive of an injury to the inner ear and possibly a perilymphatic fistula.
Perilymphatic fistula still remains a controversial topic in the otologic literature.
Clinical characteristics and hearing recovery in perilymphatic fistulas of different etiologies.