title: Iatrogenic transposition of the parotid duct into the maxillary sinus after tooth extraction and closure of an oroantral fistula. A case report.
abstract: METHODS
  We report the clinical course of a patient with a rare iatrogenic surgical complication of transposition of the Parotid duct into the maxillary sinus after tooth extraction.
  
  
  CONCLUSIONS
  Oroantral fistula occurs most frequently following maxillary molar or premolar extraction. Closure of an oroantral fistula is frequently closed using the buccal mucoperiosteal flap first described by Rehrmann in 1936. Transposition of the Parotid duct is a rare surgical complication of this technique.
  
  
  CONCLUSIONS
  Differential diagnosis of nonspecific discharge from the nose should take this rare cause into account as it is a common symptom of this complication. A careful and full patient history and the correlation of nasal secretion with food intake can lead to the diagnosis.
authors.affiliation: Department of Oral and Maxillofacial Surgery, University Tübingen, Osianderstr. 2-8, D-72076 Tübingen, Germany. matthias.neuschl@med.uni-tuebingen.de
authors.forename: Matthias
authors.initials: M
authors.lastname: Neuschl
authors.forename: Susanne
authors.initials: S
authors.lastname: Kluba
authors.forename: Michael
authors.initials: M
authors.lastname: Krimmel
authors.forename: Siegmar
authors.initials: S
authors.lastname: Reinert
mesh_terms: D005260:Female; D005547:Foreign Bodies / Q000209:etiology*; D006801:Humans; D007049:Iatrogenic Disease; D008443:Maxillary Sinus; D008875:Middle Aged; D009668:Nose Diseases / Q000209:etiology; D019647:Oral Surgical Procedures / Q000009:adverse effects*; D009957:Oroantral Fistula / Q000209:etiology / Q000601:surgery*; D010306:Parotid Gland / Q000293:injuries*; D018987:Salivary Ducts / Q000293:injuries*; D013524:Surgical Flaps; D014081:Tooth Extraction / Q000009:adverse effects*; D000516:alpha-Amylases / Q000378:metabolism
chemical_list: D000516:alpha-Amylases