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Dedifferentiated liposarcoma of the orbit
Angela J Oh1, Robert A Goldberg1, Ben J Glasgow1,2
1Departments of Ophthalmology, Jules Stein Eye Institute, University of California, Los Angeles, CA, USA.
American Journal of Ophthalmology Case Reports
|January 23, 2024
Summary
Dedifferentiated liposarcoma of the orbit is rare. This case highlights that dedifferentiation can occur years after initial diagnosis, emphasizing the need for biopsies when orbital masses grow or show invasive features.
Area of Science:
- Ophthalmology
- Oncology
- Pathology
Background:
- Orbital liposarcomas are rare tumors.
- Dedifferentiation of liposarcoma can occur over time.
Observation:
- A 61-year-old male presented with proptosis and diplopia.
- Initial biopsy suggested atypical lipomatous neoplasm; later biopsies revealed well-differentiated liposarcoma, and eventually dedifferentiated liposarcoma.
Findings:
- The patient's orbital liposarcoma dedifferentiated 18 years after initial diagnosis.
- Symptoms of increased mass, proptosis, diplopia, and ptosis indicated dedifferentiation.
Implications:
- Dedifferentiation of orbital liposarcoma is a late complication.
- Persistent or worsening symptoms warrant biopsy to detect dedifferentiation.
