title: Metallic foreign body in esophagus: are multiple radiographs necessary?
abstract: BACKGROUND
  Multiple X-rays required for confirmation and localization of ingested metallic foreign body preoperatively predisposes children to increased radiation exposure. This study aims to highlight the current necessity or otherwise of these X-ray requests.
  
  
  METHODS
  This is a retrospective study of patients with ingested metallic foreign bodies over a five-year period in a tertiary health institution. Case notes and X-ray requests were studied.
  
  
  RESULTS
  Of 39 cases of foreign body in esophagus, 29 (74.4%) were metallic and the coin accounted for 79.3% of all metallic foreign bodies. There were 20 males to 9 females and 28 children aged 2 months to 11 years to one adult. There were 62 pre-extraction X-rays consisting of 29 (46.8%) initial confirmatory films and 33 (53.2%) repeat films for localization of the foreign body. There were 10 post-extraction films for postoperative complications.
  
  
  CONCLUSIONS
  More than half of the X-ray films were unnecessary and the radiation exposure was avoidable if alternative methods of localization of the foreign body such as the handheld metal detector were available.
authors.affiliation: Department of Otorhinolaryngology, Aminu Kano Teaching Hospital, Kano, Nigeria. adsalisu@yahoo.com
authors.forename: Abubakar D
authors.initials: AD
authors.lastname: Salisu
mesh_terms: D000328:Adult; D002648:Child; D002675:Child, Preschool; D004947:Esophagus / Q000000981:diagnostic imaging*; D005260:Female; D005547:Foreign Bodies / Q000000981:diagnostic imaging*; D006784:Hospitals, Teaching; D006801:Humans; D008297:Male; D008670:Metals; D009549:Nigeria; D009717:Numismatics; D011859:Radiography; D012189:Retrospective Studies; D014962:X-Ray Film
chemical_list: D008670:Metals