title: Nasolacrimal duct obstruction secondary to ectopic teeth.
abstract: OBJECTIVE
  To describe two patients with nasolacrimal duct obstruction (NLDO) caused by ectopic eruption of teeth. The literature concerning nasal and other unusual ectopic sites of tooth eruption is reviewed.
  
  
  METHODS
  Two interventional case reports and literature review.
  
  
  METHODS
  A 3-year-old girl with epiphora and recurrent dacryocystitis of the right eye. Previous medical and surgical management was unsuccessful. A 32-year-old female with a long history of right eye discomfort and epiphora. Previous examinations and workup were negative.
  
  
  METHODS
  A computed tomographic (CT) scan of the orbits and sinuses was performed in both patients. The ectopic teeth were surgically removed.
  
  
  METHODS
  Nasolacrimal system function and response to treatment at the last follow-up were recorded.
  
  
  RESULTS
  In the first patient, CT imaging disclosed two teeth within the right inferior meatus compressing the nasolacrimal duct. In the second patient, CT revealed a large dental structure in the maxillary sinus compressing the nasolacrimal duct. Endoscopic tooth extraction and nasolacrimal duct probing in the first patient and surgical removal of the dental structure in the second patient effected complete resolution of symptoms. Both patients were symptom free at last follow-up.
  
  
  CONCLUSIONS
  These cases suggest that ectopic eruption of teeth should be added to the differential diagnosis of NLDO. Surgical removal of the ectopic teeth compressing the nasolacrimal duct results in resolution of the lacrimal drainage obstruction.
authors.affiliation: Bascom Palmer Eye Institute, University of Miami School of Medicine, Florida.
authors.forename: G
authors.initials: G
authors.lastname: Alexandrakis
authors.forename: R N
authors.initials: RN
authors.lastname: Hubbell
authors.forename: P A
authors.initials: PA
authors.lastname: Aitken
mesh_terms: D000328:Adult; D002675:Child, Preschool; D003607:Dacryocystitis / Q000209:etiology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007767:Lacrimal Duct Obstruction / Q000000981:diagnostic imaging / Q000209:etiology*; D009301:Nasolacrimal Duct / Q000000981:diagnostic imaging / Q000473:pathology*; D011859:Radiography; D012008:Recurrence; D014079:Tooth Eruption, Ectopic / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery