title: Granular cell tumor of the lacrimal sac and nasolacrimal duct: no invasive behavior with incomplete resection.
abstract: OBJECTIVE
  Granular cell tumors are rare tumors of the periorbital region, and we present the second such case in the lacrimal sac. The natural history and clinical behavior of these tumors is reviewed.
  
  
  METHODS
  Case report.
  
  
  METHODS
  The clinical presentation, workup, surgical approach, and pathology of a case of granular cell tumor of the lacrimal sac are presented.
  
  
  RESULTS
  There has been no recurrence of the lacrimal sac tumor with incomplete resection.
  
  
  CONCLUSIONS
  This case history further adds to the understanding of the biologic behavior of granular cell tumors in the periorbital region.
authors.affiliation: Department of Ophthalmology and Visual Sciences, University of Wisconsin Medical School, Madison, Wisconsin 53792-3220, USA.
authors.forename: S J
authors.initials: SJ
authors.lastname: Sabet
authors.forename: K J
authors.initials: KJ
authors.lastname: Tarbet
authors.forename: B N
authors.initials: BN
authors.lastname: Lemke
authors.forename: M E
authors.initials: ME
authors.lastname: Smith
authors.forename: D M
authors.initials: DM
authors.lastname: Albert
mesh_terms: D000328:Adult; D005134:Eye Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D005260:Female; D016586:Granular Cell Tumor / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007766:Lacrimal Apparatus Diseases / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D009301:Nasolacrimal Duct / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D009361:Neoplasm Invasiveness; D014057:Tomography, X-Ray Computed