title: Two emerging perilymph fistula "syndromes" in children.
abstract: This paper proposes two relatively common "syndromes" seen in children with perilymph fistulas using illustrative case reports. One, a 2 1/2-year-old child with bilaterally symmetric progressive sensorineural hearing loss, was found to have bilateral oval and round window fistulas. The other was a child who presented originally with an unexplained unilateral sensorineural loss. It was only when hearing deteriorated in the opposite ear several years later that a perilymph fistula was suspected and confirmed by tympanotomy. The clinical presentations and other details of these cases diverge widely, but may represent two emerging syndromes of perilymph fistulas in children: 1. a congenital or hereditary predisposition, and the other, 2. sudden hearing loss in the "good" ear of children with an unexplained sensorineural hearing loss in the opposite ear.
mesh_terms: D001299:Audiometry; D001309:Auditory Threshold; D002675:Child, Preschool; D003051:Cochlea; D004244:Dizziness / Q000209:etiology; D005260:Female; D005402:Fistula / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D006319:Hearing Loss, Sensorineural / Q000209:etiology*; D006801:Humans; D007759:Labyrinth Diseases / Q000150:complications / Q000175:diagnosis / Q000601:surgery; D007761:Labyrinthine Fluids; D010046:Oval Window, Ear; D010498:Perilymph; D012405:Round Window, Ear; D013577:Syndrome; D014722:Vestibule, Labyrinth