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Orbital pleomorphic liposarcoma in an eight-year-old boy
Erin Rudzinski1, Louise Mawn, John Kuttesch
1Department of Pathology, Seattle Children's Hospital, Seattle, WA 98105, USA.
Summary
This report details a rare pediatric orbital pleomorphic liposarcoma, an adult-type sarcoma. Histologic analysis confirmed a high-grade sarcoma with lipoblastic differentiation in an 8-year-old boy.
Area of Science:
- Oncology
- Pediatric Pathology
- Ophthalmology
Background:
- Adult-type sarcomas are uncommon in children, with nonrhabdomyosarcoma soft tissue sarcomas representing a rare diagnostic category.
- Pleomorphic liposarcoma is a high-grade sarcoma typically found in adults, rarely presenting in pediatric patients.
Observation:
- A case of primary orbital pleomorphic liposarcoma in an 8-year-old boy is presented.
- Histologic examination revealed bizarre tumor giant cells and lipoblastic differentiation.
- Immunohistochemistry showed S100 positivity and negativity for CD34, desmin, MyoD1, and myogenin.
Findings:
- The tumor exhibited features of a high-grade sarcoma.
- The immunohistochemical profile supported the diagnosis of pleomorphic liposarcoma.
- This case represents an extremely rare occurrence of an adult-type sarcoma in a pediatric orbit.
Implications:
- Highlights the importance of considering adult-type sarcomas in the differential diagnosis of pediatric orbital tumors.
- Contributes to the limited literature on pediatric pleomorphic liposarcoma, aiding future diagnostic and therapeutic strategies.
- Underscores the need for specialized histopathological evaluation in rare pediatric malignancies.