title: A case of primary adenocarcinoma of the lacrimal sac.
abstract: OBJECTIVE
  To present a rare case of adenocarcinoma arising from the lacrimal sac.
  
  
  METHODS
  Interventional case report.
  
  
  METHODS
  Report of a new case of primary lacrimal sac adenocarcinoma.
  
  
  RESULTS
  The clinical presentation, workup, surgical treatment and pathology of a case of adenocarcinoma of the lacrimal sac are described.
  
  
  CONCLUSIONS
  Although very rare, these tumors should be in the differential diagnosis of any lacrimal sac mass, especially those presenting above the medial canthal tendon. Other common features include expressible blood from the punctum, lack of pain, and a history of chronic epiphora or intermittent dacryocystitis. Local destruction and metastatic spread can be prevented by a high index of suspicion and early intervention.
authors.affiliation: Department of Ophthalmology, University of Cincinnati College of Medicine, Cincinnati, OH, USA. paulbrannan@hotmail.com
authors.forename: Paul A
authors.initials: PA
authors.lastname: Brannan
authors.forename: Robert C
authors.initials: RC
authors.lastname: Kersten
authors.forename: Susan
authors.initials: S
authors.lastname: Schneider
authors.forename: Dwight R
authors.initials: DR
authors.lastname: Kulwin
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis* / Q000532:radiotherapy / Q000601:surgery*; D003131:Combined Modality Therapy; D005134:Eye Neoplasms / Q000175:diagnosis* / Q000532:radiotherapy / Q000601:surgery*; D006801:Humans; D007766:Lacrimal Apparatus Diseases / Q000175:diagnosis* / Q000532:radiotherapy / Q000601:surgery*; D008297:Male; D008875:Middle Aged