title: Nasolacrimal duct orifice cysts in adults: a previously unrecognized, easily treatable cause of epiphora.
abstract: BACKGROUND
  Epiphora is a common problem evaluated by ophthalmologists and otolaryngologists. It is typically the result of obstruction at some level of the nasolacrimal system, either the canaliculi, sac, or duct. Multiple etiologies exist, including scarring from infection or trauma, tumors, or masses. Cysts of the nasolacrimal duct orifice (dacryocystoceles) in the inferior meatus have been described in neonates, usually presenting as obstructive nasal masses shortly after birth. Nasolacrimal duct orifice cysts have not been described in the adult population in the medical literature.
  
  
  METHODS
  Three patients were identified with epiphora as a result of cysts in the inferior meatus at the opening of the nasolacrimal duct. All patients presented with constant epiphora and were referred for dacryocystorhinostomy by an ophthalmologist or an otolaryngologist. None of the patients had a previous history of nasolacrimal duct (NLD) surgery. One patient had previous endoscopic sinus surgery for nasal polyps. Cysts were identified by nasal endoscopy of the inferior meatus in all patients.
  
  
  RESULTS
  All patients underwent endoscopic resection of the inferior meatus cyst to relieve the obstruction of the NLD. Two procedures were performed under general anesthesia and one under intravenous sedation. All patients had complete relief of epiphora and have had no evidence of recurrence of the symptoms or the cyst in 4 to 10 months follow-up.
  
  
  CONCLUSIONS
  NLD orifice cysts are easily correctable causes of epiphora. Routine inferior meatus endoscopy should be routinely performed in patients with epiphora to identify whether on not this pathology is present prior to performing dacryocystorhinostomy.
authors: Department of Otolaryngology-Head and Neck Surgery, Emory University School of Medicine, Atlanta, Georgia 30322, USA. john.delgaudio@emoryhealthcare.org
authors: John M
authors: JM
authors: DelGaudio
authors: Ted
authors: T
authors: Wojno
mesh_terms: D000368:Aged; D003560:Cysts / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery; D003608:Dacryocystorhinostomy / Q000379:methods*; D003937:Diagnosis, Differential; D004724:Endoscopy / Q000379:methods; D005260:Female; D006801:Humans; D007766:Lacrimal Apparatus Diseases / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery; D007767:Lacrimal Duct Obstruction / Q000209:etiology*; D009298:Nasal Polyps / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery; D009301:Nasolacrimal Duct / Q000000981:diagnostic imaging* / Q000601:surgery*; D009885:Ophthalmology / Q000379:methods; D010036:Otolaryngology / Q000379:methods; D014057:Tomography, X-Ray Computed