title: Migration of tip knife blade through middle-third facial tissues.
abstract: OBJECTIVE
  The aim of this paper is to report a case of knife aggression with a spontaneous migration of a tip blade lodged in deep tissues 6 months after trauma.
  
  
  METHODS
  An 18-year-old woman that was a victim of impalement injury with a knife by her boyfriend on the glabella region with a blade fracture and tip lodging into middle-third facial tissues.
  
  
  RESULTS
  After conservative management of a knife tip, a spontaneous migration occurred with its exposition on the zygomatic area, possibly due to a functional treatment to improve mouth opening.
  
  
  CONCLUSIONS
  Fracture of knife blade with a tip retained deeply into the tissues is considered foreign body, and its removal must be considered. Nevertheless, the basis for this removal takes account the cost-benefit ratio, and if a conservative management was chosen, the clinical and radiological accompanying is mandatory to prevent and to treat its possible complications.
authors.affiliation: Maria Amélia Lins Hospital, Av. Raja Gabaglia 1000, Gutierrez, Belo Horizonte, MG, Brazil. brunochrcanovic@hotmail.com
authors.forename: Bruno Ramos
authors.initials: BR
authors.lastname: Chrcanovic
authors.forename: Leandro Napier de
authors.initials: LN
authors.lastname: Souza
authors.forename: Belini
authors.initials: B
authors.lastname: Freire-Maia
mesh_terms: D000293:Adolescent; D001766:Blindness / Q000000981:diagnostic imaging / Q000209:etiology; D001938:Brazil; D005151:Facial Injuries / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery; D005260:Female; D005548:Foreign-Body Migration / Q000000981:diagnostic imaging* / Q000601:surgery; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional; D009915:Orbit / Q000000981:diagnostic imaging / Q000293:injuries*; D014057:Tomography, X-Ray Computed; D014951:Wounds, Stab / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery; D015050:Zygoma / Q000000981:diagnostic imaging* / Q000601:surgery