title: Isolated Osteoma of the Ascending Process of the Maxilla.
abstract: BACKGROUND
  Osteoma, the most common benign tumor of the paranasal sinuses, most commonly originates within the frontal sinus, followed by the ethmoid, the maxillary sinus, and finally sphenoid. Only 2 cases of osteomas of the nasal bones were previously reported. This study describes the first reported osteoma of the ascending process of maxilla and describes its management.
  
  
  METHODS
  A 20-year-old man was presented with left painless hard nasal swelling. Computed tomography (CT) scan showed well-circumscribed hyperdense bony mass originating from the outer surface of the left ascending process of maxilla. This mass was removed through lateral nasal incision.
  
  
  RESULTS
  The mass was histopathologically proved to be compact osteoma and was removed totally with no reported operative or postoperative complication.
  
  
  CONCLUSIONS
  A case of osteoma of ascending process of maxilla was reported and could be safely removed. This directs surgeon attention to osteoma as a cause of nasal bone swelling because early diagnosis allows easy and safe removal of the osteoma.
authors.affiliation: Otorhinolaryngology-Head and Neck Surgery Department, Faculty of Medicine, Zagazig University, Egypt.
authors.forename: Mohammad W
authors.initials: MW
authors.lastname: El-Anwar
authors.forename: Ezzeddin
authors.initials: E
authors.lastname: Elsheikh
mesh_terms: D006801:Humans; D008297:Male; D063175:Mandibular Reconstruction / Q000379:methods; D008437:Maxilla / Q000000981:diagnostic imaging* / Q000601:surgery; D008441:Maxillary Neoplasms / Q000175:diagnosis* / Q000601:surgery; D010016:Osteoma / Q000175:diagnosis* / Q000601:surgery; D010027:Osteotomy / Q000379:methods*; D014057:Tomography, X-Ray Computed; D055815:Young Adult