title: Vocal cord immobility caused by the long-standing impaction of a fishbone in the hypopharynx.
abstract: Vocal cord immobility is a rare presentation of an impacted fishbone in the pharynx. The mechanisms can be classified into either mechanical articular fixation or direct/indirect neuropathy of the recurrent laryngeal nerve. We report a case of vocal cord immobility secondary to long-standing impaction of a fishbone in the hypopharynx for at least 9 months. The diagnosis was made by computed tomography (CT) and rigid laryngoscopy because no reliable history was available. The cricoarytenoid joint was not fixed and the function of the vocal cords returned one month after removal of the fishbone. The mechanism of the vocal cord immobility was an injury to the recurrent laryngeal nerve due to the chronic inflammatory reaction in the paraglottic space.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Hualien Armed Forces General Hospital, Hualien, Taiwan.
authors.forename: Chung-Ching
authors.initials: CC
authors.lastname: Hung
authors.forename: Jih-Chin
authors.initials: JC
authors.lastname: Lee
authors.forename: Li-Chun
authors.initials: LC
authors.lastname: Hsiao
authors.forename: Yaoh-Shiang
authors.initials: YS
authors.lastname: Lin
mesh_terms: D000368:Aged; D000818:Animals; D005260:Female; D005399:Fishes; D005547:Foreign Bodies / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D006801:Humans; D007013:Hypopharynx / Q000293:injuries*; D014057:Tomography, X-Ray Computed; D014826:Vocal Cord Paralysis / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery*; D014827:Vocal Cords / Q000293:injuries*; D014950:Wounds, Penetrating / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery*