title: BB embolus causing monocular blindness in a 9-year-old boy.
abstract: OBJECTIVE
  To report a case of monocular blindness resulting from intravascular bullet migration.
  
  
  METHODS
  Observational case report.
  
  
  METHODS
  A 9-year-old boy presented to the emergency room with a penetrating BB gun injury to the chest.
  
  
  RESULTS
  Carotid angiography localized the bullet to the right internal carotid artery. He subsequently suffered blindness in the right eye, a right pupil-involving third nerve palsy, left hemiparesis, and a probable left homonymous hemianopia.
  
  
  CONCLUSIONS
  BB gun injuries may result in devastating ophthalmologic as well as systemic consequences due to bullet embolization.
authors.affiliation: Department of Ophthalmology, Brown University and Rhode Island Hospital, Providence, Rhode Island 02903, USA.
authors.forename: Christina I
authors.initials: CI
authors.lastname: Pacio
authors.forename: Marjorie A
authors.initials: MA
authors.lastname: Murphy
mesh_terms: D000792:Angiography; D001766:Blindness / Q000209:etiology*; D002340:Carotid Artery Diseases / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000209:etiology*; D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging / Q000187:drug effects / Q000473:pathology*; D002648:Child; D004617:Embolism / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000209:etiology*; D005343:Fibrinolytic Agents / Q000627:therapeutic use; D005548:Foreign-Body Migration / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000209:etiology*; D006335:Heart Injuries / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D006352:Heart Ventricles / Q000293:injuries / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D010490:Pericardial Effusion / Q000209:etiology / Q000473:pathology / Q000601:surgery; D015912:Thrombolytic Therapy; D010959:Tissue Plasminogen Activator / Q000627:therapeutic use; D015349:Vision, Monocular; D014792:Visual Acuity; D014948:Wounds, Gunshot / Q000150:complications*
chemical_list: D005343:Fibrinolytic Agents; D010959:Tissue Plasminogen Activator