title: "Spontaneous" perilymph fistula: a case report.
abstract: A surgically documented case of barotrauma-induced perilymph fistula is presented in this case report. A brief review of the literature on this entity confirms the difficulty of making a definitive preoperative diagnosis in most instances. Clinical, audiometric, radiologic, and intraoperative findings are presented, and the classic presumed mechanisms for this uncommon cause of sudden sensorineural hearing loss are discussed. The presence of intact evoked otoacoustic emissions in an ear demonstrating a severe cochlear-type loss was considered helpful in narrowing the differential diagnosis in this case, and may suggest a productive avenue for future study.
authors.affiliation: Yankton Medical Clinic, University of South Dakota School of Medicine, Yankton, South Dakota, USA.
authors.forename: Patrick J
authors.initials: PJ
authors.lastname: Collison
authors.forename: Kevin C
authors.initials: KC
authors.lastname: Pons
mesh_terms: D000328:Adult; D001299:Audiometry; D001469:Barotrauma / Q000150:complications*; D005402:Fistula / Q000145:classification / Q000209:etiology* / Q000601:surgery; D006319:Hearing Loss, Sensorineural / Q000209:etiology; D003639:Hearing Loss, Sudden / Q000209:etiology; D006801:Humans; D007759:Labyrinth Diseases / Q000145:classification / Q000209:etiology* / Q000601:surgery; D008297:Male; D010498:Perilymph