title: Two-hole trephination (Muntarbhorn) technique for a large frontal sinus osteoma: a case report.
abstract: OBJECTIVE
  To present an alternative surgical option for frontal sinus osteoma.
  
  
  METHODS
  A woman presented with a symptomatic large osteoma in right frontal sinus. Two-hole trephination was planned to remove the osteoma using nasal endoscope and a drill in each hole.
  
  
  RESULTS
  The osteoma was drilled and removed transnasally. Two months later, two small fragments of osteoma were detected remaining in the lateral aspect of the sinus. The fragments were removed successfully with the same technique. The patient was asymptomatic six months postoperatively.
  
  
  CONCLUSIONS
  Two-hole trephination technique or Muntarbhorn technique is an attractive option for frontal sinus osteoma.
authors: Department of Otorhinolaryngology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand. sanguansak2011@gmail.com
authors: Sanguansak
authors: S
authors: Thanaviratananich
authors: Pornthep
authors: P
authors: Kasemsiri
authors: Poonsiri
authors: P
authors: Sinawat
mesh_terms: D001859:Bone Neoplasms / Q000473:pathology / Q000601:surgery*; D005260:Female; D005624:Frontal Bone / Q000601:surgery*; D006801:Humans; D008875:Middle Aged; D010016:Osteoma / Q000473:pathology / Q000601:surgery*; D014207:Trephining / Q000379:methods