title: Temporary vocal fold immobility after chemocauterization of the pyriform sinus fistula opening with trichloroacetic acid.
abstract: Pyriform sinus fistula (PSF) is a rare branchial pouch anomaly. Circumferential chemocauterization of the opening with trichloroacetic acid (TCA) is a simple, reliable treatment of choice with little morbidity. However, we experienced two cases of vocal fold immobility after chemocauterization of the PSF opening with TCA. Vocal fold mobility recovered spontaneously within 8 weeks in both cases. Herein, we report these cases in addition to a review of the literature.
authors: Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Boramae Hospital, Seoul, South Korea.
authors: Joo Hyun
authors: JH
authors: Park
authors: Young Ho
authors: YH
authors: Jung
authors: Myung-Whun
authors: MW
authors: Sung
authors: Kwang Hyun
authors: KH
authors: Kim
mesh_terms: D002424:Caustics / Q000627:therapeutic use*; D002675:Child, Preschool; D003131:Combined Modality Therapy; D004322:Drainage; D005260:Female; D006801:Humans; D007223:Infant; D007828:Laryngoscopy; D008297:Male; D012075:Remission, Spontaneous; D016156:Respiratory Tract Fistula / Q000000981:diagnostic imaging / Q000188:drug therapy* / Q000601:surgery*; D014057:Tomography, X-Ray Computed; D014238:Trichloroacetic Acid / Q000627:therapeutic use*; D014826:Vocal Cord Paralysis / Q000139:chemically induced*
chemical_list: D002424:Caustics; D014238:Trichloroacetic Acid