title: Malignant mesenchymoma of the orbit: case report and review of the literature.
abstract: OBJECTIVE
  Malignant mesenchymoma are rare tumors of the orbit. From 1961 using English-language literature, we present the sixth such case and the first case with three malignant components.
  
  
  METHODS
  Interventional case report.
  
  
  METHODS
  The clinical presentation, workup, surgical treatment, and pathology of a case of malignant mesenchymoma of the orbit are presented.
  
  
  RESULTS
  Although very rare, these tumors should be in the differential diagnosis of any tumor of the orbit. The prognosis is unknown because of the lack of follow-up of reported patients.
  
  
  CONCLUSIONS
  This malignant orbital mesenchymoma, an entity not accepted by all pathologists, was more complex than cases previously reported in the English literature in demonstrating rhabdomyosarcomatous, chondrosarcomatous, and osteogenic differentiation.
authors.affiliation: Department of Ophthalmology, Medical Center Pavilion A, University of Cincinnati College of Medicine, 234 Goodman Street, Cincinnati, OH 45219, USA.
authors.forename: Paul A
authors.initials: PA
authors.lastname: Brannan
authors.forename: Susan
authors.initials: S
authors.lastname: Schneider
authors.forename: Hans E
authors.initials: HE
authors.lastname: Grossniklaus
authors.forename: George K
authors.initials: GK
authors.lastname: Mutema
authors.forename: Ivan
authors.initials: I
authors.lastname: Tarle
authors.forename: Robert C
authors.initials: RC
authors.lastname: Kersten
authors.forename: Dwight R
authors.initials: DR
authors.lastname: Kulwin
mesh_terms: D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000473:pathology; D017809:Fatal Outcome; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology; D008297:Male; D008637:Mesenchymoma / Q000000981:diagnostic imaging / Q000473:pathology*; D009918:Orbital Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D014057:Tomography, X-Ray Computed