Epithelioid sarcomas: How important is loco-regional control?

Area of Science:

• Oncology
• Surgical Oncology
• Sarcoma Research

Background:

• Epithelioid sarcoma (ES) is a rare soft tissue sarcoma.
• Treatment strategies for ES vary, impacting oncological outcomes.
• Understanding the influence of surgical methods on ES prognosis is crucial.

Purpose of the Study:

• To evaluate the impact of different surgical treatments on oncological outcomes in epithelioid sarcoma patients.
• To compare limb salvage surgery versus amputation in terms of local recurrence, metastasis, and survival.

Main Methods:

• Retrospective analysis of 54 epithelioid sarcoma patients treated between 1985-2012 at two international centers.
• Data collection included patient demographics, tumor characteristics, surgical procedures (limb salvage vs. amputation), adjuvant radiotherapy, and oncological outcomes.
• Multivariate analysis was performed to identify factors influencing survival and metastasis.

Main Results:

• Of 49 surgically treated patients, 38 underwent limb salvage and 11 amputation.
• Negative margin resection was achieved in 98% of cases.
• The five-year local recurrence rate was 14%, with overall survival at five and ten years at 70% and 66%, respectively.
• Amputation was associated with a higher risk of metastases in localized disease with negative margins, but not overall survival.

Conclusions:

• Surgical method does not influence local recurrence rates in epithelioid sarcoma.
• Amputation may be linked to an increased risk of metastasis, potentially due to more advanced tumors requiring this procedure.
• The study could not definitively prove that immediate amputation impacts overall survival in ES patients.