title: Primary synovial sarcoma.
abstract: OBJECTIVE
  To describe the clinicopathologic and immunohistochemical features and treatment of a rare case of primary synovial sarcoma of the orbit.
  
  
  METHODS
  Retrospective interventional case report.
  
  
  METHODS
  A 14-year-old young man with histologically proven synovial sarcoma of the orbit. The diagnosis was confirmed by demonstration of a specific chromosomal translocation by polymerase chain reaction studies.
  
  
  METHODS
  The patient was treated with orbital exenteration and followed up for 18 months at regular intervals.
  
  
  RESULTS
  The tumor was excised completely, and the patient has done well during the initial 1-year follow-up with no sign of recurrence.
  
  
  CONCLUSIONS
  We report the fourth case of synovial sarcoma of the orbit and, at 14 years of age, the youngest patient reported.
authors.affiliation: Department of Ophthalmology, Saint Louis University Eye Institute, Saint Louis University School of Medicine, St. Louis, Missouri 63104, USA. mhartstein@earthlink.net
authors.forename: Morris E
authors.initials: ME
authors.lastname: Hartstein
authors.forename: Frankie-Lynn
authors.initials: FL
authors.lastname: Silver
authors.forename: Olivia J
authors.initials: OJ
authors.lastname: Ludwig
authors.forename: Dennis M
authors.initials: DM
authors.lastname: O'Connor
mesh_terms: D000293:Adolescent; D006801:Humans; D007150:Immunohistochemistry / Q000379:methods; D008297:Male; D013508:Ophthalmologic Surgical Procedures; D009918:Orbital Neoplasms / Q000175:diagnosis / Q000235:genetics / Q000473:pathology / Q000601:surgery*; D016133:Polymerase Chain Reaction; D012189:Retrospective Studies; D013584:Sarcoma, Synovial / Q000175:diagnosis / Q000235:genetics / Q000473:pathology / Q000601:surgery*; D013194:Staining and Labeling; D014057:Tomography, X-Ray Computed; D014178:Translocation, Genetic