title: Magnetic resonance imaging induced acute midfacial pain - incidental finding of a dislocated dental bur.
abstract: OBJECTIVE
  To describe the management of a patient with an initially unnoticed dislocated dental bur in the maxillary sinus that became symptomatic during a magnetic resonance imaging (MRI) scan.
  
  
  METHODS
  A MRI scan provoked strong midfacial pain in a 31-year-old male patient, who exhibited ambiguous neurologic impairment consistent with multiple sclerosis. Conventional radiography revealed an opaque foreign body in close proximity to the orbital floor that most likely caused the painful symptoms during the MRI.
  
  
  RESULTS
  After additional X-ray computed tomography (X-ray CT) scans were performed, a metal dental bur was removed by a combined transconjunctival and transnasal approach under perioperative antibiotic treatment.
  
  
  CONCLUSIONS
  The disappearance of instruments during surgical procedures requires diligent investigation and immediate retrieval.
authors.forename: Jan Oliver
authors.initials: JO
authors.lastname: Voss
authors.forename: Jan-Dirk
authors.initials: JD
authors.lastname: Raguse
authors.forename: Bodo
authors.initials: B
authors.lastname: Hoffmeister
authors.forename: Nicolai
authors.initials: N
authors.lastname: Adolphs
mesh_terms: D000328:Adult; D002508:Cephalometry / Q000379:methods; D003762:Dental Instruments / Q000009:adverse effects*; D004724:Endoscopy / Q000379:methods; D005157:Facial Pain / Q000209:etiology*; D005547:Foreign Bodies / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000009:adverse effects*; D008297:Male; D008443:Maxillary Sinus / Q000000981:diagnostic imaging / Q000473:pathology*; D009296:Nasal Cavity / Q000000981:diagnostic imaging / Q000473:pathology*; D014057:Tomography, X-Ray Computed / Q000379:methods