title: Nasal polyps herniating through lacrimal-nasal bony ostium mimicking dacryocystocele: a rare cause of DCR failure.
abstract: OBJECTIVE
  To describe a rare cause of dacryocystorhinostomy (DCR) failure resulting from polyps herniating through the lacrimal-nasal ostium in a patient with severe, recurrent nasal polyposis.
  
  
  METHODS
  Observational case report. Clinical practice setting.
  
  
  RESULTS
  Five years after DCR surgery, a 65-year-old male patient presented with epiphora and a soft cystic enlargement in the lacrimal sac area mimicking a dacryocystocele. The Jones 1 test was negative but the Jones 2 test positive. Computer tomography (CT) showed bilateral obstruction of the nasal space by soft tissue, herniating through the lacrimal-nasal ostium, suggestive of recurrent nasal polyposis. Transnasal polypectomy was performed, which re-established tear-drainage to the nose.
  
  
  CONCLUSIONS
  Recurrent nasal polyposis may lead to DCR failure and may give rise to a soft tissue swelling at the site of previous DCR surgery.
authors.affiliation: The Rotterdam Eye Hospital, Department of Oculoplastic Surgery, Rotterdam, the Netherlands.
authors.forename: F M
authors.initials: FM
authors.lastname: Goes
authors.forename: P P
authors.initials: PP
authors.lastname: Knegt
authors.forename: A D A
authors.initials: AD
authors.lastname: Paridaens
mesh_terms: D000368:Aged; D003608:Dacryocystorhinostomy; D006547:Hernia / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D007765:Lacrimal Apparatus / Q000000981:diagnostic imaging / Q000473:pathology*; D007767:Lacrimal Duct Obstruction / Q000000981:diagnostic imaging / Q000209:etiology*; D008297:Male; D009295:Nasal Bone / Q000000981:diagnostic imaging / Q000473:pathology*; D009298:Nasal Polyps / Q000150:complications* / Q000175:diagnosis; D014057:Tomography, X-Ray Computed; D017211:Treatment Failure