title: Dedifferentiated Orbital liposarcoma: a case report.
abstract: OBJECTIVE
  To report the abnormal type of the orbital liposarcoma-dedifferentiated subtype in a patient.
  
  
  METHODS
  A case report.
  
  
  RESULTS
  A 23 years old Chinese woman with a recurrence of right-sided proptosis was evaluated. Ocular examination revealed proptosis of the right eye with chemosis, hyperemia and limitation of eye movements. Magnetic resonance imaging scanning showed an irregular shaped tumor in the right orbit. The tumor resection was done with a clinical diagnosis of malignant tumor. Histopathological findings revealed the diagnosis of dedifferentiated liposarcoma.
  
  
  CONCLUSIONS
  The rare occurrence of this tumour should be kept in mind while dealing with orbital tumours.
authors.affiliation: Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.
authors.forename: Jing-Xue
authors.initials: JX
authors.lastname: Zhang
authors.forename: Jian-Min
authors.initials: JM
authors.lastname: Ma
authors.forename: Ning-Li
authors.initials: NL
authors.lastname: Wang