title: Oncocytic carcinoma of the nasolacrimal duct treated by transnasal endoscopic resection.
abstract: BACKGROUND
  Malignancies of the nasolacrimal apparatus are rare lesions that usually originate from the lacrimal sac. To the best of our knowledge, this is the first case of a primary oncocytic carcinoma of the nasolacrimal duct reported in the literature.
  
  
  METHODS
  A 43-year-old woman presented with a 3-month history of right epiphora. At nasal endoscopy, an exophytic lesion occupying the right inferior meatus was visible. Imaging studies showed an expansile lesion involving the nasolacrimal duct and the inferior meatus, but not invading the orbit or adjacent soft tissues. A biopsy was suggestive for an oncocytic lesion.
  
  
  RESULTS
  A radical resection was obtained through an endoscopic extended medial maxillectomy with a definitive diagnosis of oncocytic carcinoma. Forty-two months after surgery there was no evidence of disease.
  
  
  CONCLUSIONS
  In selected malignant lesions of the nasolacrimal duct not involving the adjacent soft tissues or lacrimal sac, an exclusive endoscopic approach can be considered.
authors: Department of Otorhinolaryngology, University of Brescia, Brescia, Italy. dr.bolton@libero.it.
authors: Andrea Bolzoni
authors: AB
authors: Villaret
authors: Davide
authors: D
authors: Lombardi
authors: Alberto
authors: A
authors: Schreiber
authors: Davide
authors: D
authors: Farina
authors: Piero
authors: P
authors: Nicolai
mesh_terms: D000328:Adult; D004724:Endoscopy / Q000379:methods*; D005260:Female; D006801:Humans; D007766:Lacrimal Apparatus Diseases / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D009301:Nasolacrimal Duct / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D014057:Tomography, X-Ray Computed