title: Nasopalatine duct cyst (NPDc): one case report.
abstract: OBJECTIVE
  NPDc arises from embryological tissue. It is classified among the epithelial non-odontogenic cysts according to the 1992 WHO histological typing of odontogenic tumors. The purpose of our report was to provide details about the pathophysiology, diagnosis and treatment of NPDc.
  
  
  METHODS
  A 25 year-old male was referred by his practitioner regarding to an intermittent palatal swelling for 6 months. Diagnosis of NPDc was suggested on the basis of computed tomography (CT-scan). Excision was performed under general anaesthesia. There was no post-operative complication. Histological features confirmed an inflamed NPDc. Follow up was 22 months, without relapse.
  
  
  CONCLUSIONS
  NPDc occurs in approximately 1% of the population and forms approximately 12% of all jaw cyst tumors. NPDc may occur at any age, but main cases are seen between 40 and 60 years old. It has a slight male predilection. Black and white people are equally involved. NPDc is normally asymptomatic, unless it is infected. The most common symptom is swelling, usually in the anterior part of palate's midline. Diagnosis is based on radiographic and histological results. Treatment of choice is enucleation.
authors.affiliation: ENT Department, University Hospital of Grenoble, Grenoble, France. CRighini@chu-grenoble.fr
authors.forename: C  A
authors.initials: C
authors.lastname: Righini
authors.forename: G
authors.initials: G
authors.lastname: Bettega
authors.forename: K
authors.initials: K
authors.lastname: Boubagra
authors.forename: E
authors.initials: E
authors.lastname: Reyt
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D009059:Mouth Diseases / Q000175:diagnosis* / Q000473:pathology; D009296:Nasal Cavity; D009631:Nonodontogenic Cysts / Q000175:diagnosis* / Q000473:pathology; D009668:Nose Diseases / Q000175:diagnosis* / Q000473:pathology; D021362:Palate, Hard