title: Clinical characteristics of external auditory canal cholesteatoma in children.
abstract: OBJECTIVE
  The purpose of this study was to investigate the characteristics of pediatric external auditory canal cholesteatoma (EACC).
  
  
  METHODS
  Chart review of nine children with EACC between January 1, 2000 and December 31, 2007 was performed with subsequent analysis of etiologic factors, associated symptoms, otoscopic findings, imaging features, and treatment outcomes.
  
  
  RESULTS
  The average age of patients was 10.3 years (range 6-15 years). Five patients were girls and four were boys. There was greater incidence of EACC on the right side (eight of nine patients). Otorrhea and hearing impairment were the most common presenting symptoms. The inferior wall of the external auditory canal was most commonly involved. Five patients underwent cholesteatoma removal under general anesthesia. Surgical procedures were performed in four patients. No recurrence except in one patient was found during the follow-up period.
  
  
  CONCLUSIONS
  Pediatric EACC is reported as a rare condition, but its low occurrence may be due to underreporting. Early diagnosis and treatment is essential in the management of pediatric EACC.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Research Institute for Medical Sciences, Chungnam National University College of Medicine, Daejeon, Republic of Korea.
authors.forename: Yeo-Hoon
authors.initials: YH
authors.lastname: Yoon
authors.forename: Chan Hee
authors.initials: CH
authors.lastname: Park
authors.forename: Eung-Hyub
authors.initials: EH
authors.lastname: Kim
authors.forename: Yong Ho
authors.initials: YH
authors.lastname: Park
mesh_terms: D000293:Adolescent; D002648:Child; D002781:Cholesteatoma / Q000150:complications / Q000175:diagnosis* / Q000601:surgery*; D015331:Cohort Studies; D004424:Ear Canal; D004427:Ear Diseases / Q000150:complications / Q000175:diagnosis* / Q000601:surgery*; D005260:Female; D034381:Hearing Loss / Q000209:etiology; D006801:Humans; D008297:Male; D008416:Mastoid / Q000601:surgery; D010034:Otitis Media with Effusion / Q000209:etiology; D038781:Otoscopy; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed