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Surgical Management of Retroperitoneal Liposarcoma: Opportunities for Multimodality Treatment, Including Systemic

Steven Sun¹, Kenneth Cardona², William W Tseng¹

¹Division of Surgical Oncology, Department of Surgery, City of Hope National Medical Center, Duarte, California, USA.

Cancer Medicine

|August 8, 2025

Summary

Treatment for retroperitoneal liposarcoma (RP LPS) involves surgery and multimodal strategies. Effective management of this rare cancer requires careful consideration of tumor biology and multidisciplinary team collaboration for optimal patient outcomes.

Keywords:

dedifferentiated liposarcoma multimodality surgery retroperitoneal sarcoma surgery well‐differentiated

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Area of Science:

Oncology
Surgical Oncology
Medical Oncology

Background:

Retroperitoneal liposarcoma (RP LPS) is a rare cancer, with dedifferentiated LPS being more aggressive than well-differentiated LPS.
RP LPS accounts for about half of all retroperitoneal sarcomas.

Purpose of the Study:

To review the surgical management of RP LPS.
To highlight multimodal treatment strategies for primary and recurrent RP LPS.

Main Methods:

Literature review of studies on RP LPS treatment.
Interpretation of data within expert clinical experience.

Main Results:

Surgery is the standard treatment for RP LPS, aiming for wide margins in primary disease.
Neoadjuvant radiation therapy can enhance local control, but neoadjuvant chemotherapy data is limited.
Tumor biology and extent of disease impact prognosis and treatment decisions.

Conclusions:

Multimodality treatment for RP LPS is complex, requiring consideration of tumor biology and patient characteristics.
Multidisciplinary team collaboration is essential for improving outcomes in RP LPS patients.