title: The utility of endoscopic radical resection with microdissection electrodes for lingual thyroglossal duct cysts.
abstract: BACKGROUND
  Lingual thyroglossal duct cysts (LTGDCs) are very rare and liable to be misdiagnosed as simple vallecular or mucus retention cysts. We recognized the importance of complete resection by means of the Sistrunk operation and applied the revised surgical technique to the treatment of LTGDCs. The aim of this study was to evaluate the results of surgical management of LTGDCs from the author's series and analyze its utility.
  
  
  METHODS
  Twelve patients, 10 male and 2 female, who were diagnosed with LTGDCs between January 2007 and December 2012, underwent endoscopic radical resection with microdissection electrodes. All cases were evaluated by enhanced CT and flexible laryngoscope before surgery. We reviewed the collected data including presentation, CT findings, surgical techniques, postoperative complication, and recurrence.
  
  
  RESULTS
  Most adult LTGDCs presented with foreign body sensation, while one infant presented acute upper airway obstruction. All cysts abutted on the hyoid bone and were located at the midline of the posterior tongue. Endoscopic radical resection with microdissection electrodes was possible by dissecting hyoid periosteum without significant morbidity. All patients excluding 1 infant were not intubated electively overnight and went home the following morning. All patients showed no evidence of recurrence during follow-up.
  
  
  CONCLUSIONS
  We found that the diagnosis of LTGDCs must be based on the anatomic relationship with the hyoid bone by enhanced sagittal neck CT. Endoscopic radical resection with microdissection electrodes can be recommended for reducing recurrence and morbidity by dissecting the hyoid perichondrium in the treatment of LTGDCs.
authors.affiliation: From the *Departments of Otorhinolaryngology-Head and Neck Surgery and †Radiology, The Catholic University of Korea, Seoul, Korea.
authors.forename: Jung-Hae
authors.initials: JH
authors.lastname: Cho
authors.forename: Won-Sang
authors.initials: WS
authors.lastname: Jung
authors.forename: Dong-Il
authors.initials: DI
authors.lastname: Sun
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003951:Diagnostic Errors; D004566:Electrodes; D004598:Electrosurgery / Q000295:instrumentation*; D004724:Endoscopy / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006928:Hyoid Bone / Q000000981:diagnostic imaging / Q000601:surgery; D007223:Infant; D007828:Laryngoscopy / Q000379:methods; D008297:Male; D042282:Microdissection / Q000295:instrumentation* / Q000379:methods; D008875:Middle Aged; D012189:Retrospective Studies; D013955:Thyroglossal Cyst / Q000000981:diagnostic imaging / Q000601:surgery*; D014057:Tomography, X-Ray Computed / Q000379:methods; D014059:Tongue / Q000000981:diagnostic imaging / Q000601:surgery; D016896:Treatment Outcome; D055815:Young Adult