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Related Experiment Video

Updated: Jun 10, 2025

A Mouse Model of Incompletely Resected Soft Tissue Sarcoma for Testing Neoadjuvant Therapies
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Retroperitoneal soft tissue sarcomas: Predictive factors for incomplete resection.

Pierre-Olivier Jouppe1, Nicolas Regenet2, Ephrem Salame1

  • 1Department of Digestive, Oncological, Endocrine, Hepatobiliary Surgery and Liver Transplantation, Trousseau Hospital, CHU de Tours, Tours, France.

Journal of Visceral Surgery
|October 17, 2024
PubMed
Summary

Undifferentiated liposarcoma histology predicts incomplete resection of retroperitoneal sarcoma. Low-grade histology, however, is associated with successful complete surgical removal, aiding treatment planning.

Keywords:
Retroperitoneal sarcomaSarcomaSoft-tissue sarcoma

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Area of Science:

  • Surgical Oncology
  • Sarcoma Research
  • Predictive Factor Analysis

Background:

  • Complete surgical resection is crucial for curative management of retroperitoneal sarcoma.
  • Identifying factors predicting incomplete resection is essential for improving patient outcomes.

Purpose of the Study:

  • To identify predictive factors for incomplete resection in retroperitoneal sarcoma patients.
  • To analyze demographic, radiological, surgical, and pathological criteria associated with resection completeness.

Main Methods:

  • Retrospective analysis of 58 patients undergoing surgery for retroperitoneal sarcoma (2010-2022).
  • Endpoint: incomplete resection (R1/R2); secondary analysis included marginal R0 as complete.
  • Univariate and multivariable analyses performed on various patient and tumor characteristics.

Main Results:

  • Fifty of 58 patients had incomplete resection; 7 had marginal R0.
  • Undifferentiated liposarcoma histology was significantly associated with incomplete resection (OR 12.3).
  • Low-grade (Grade I) histology predicted complete resection (OR 0.24).

Conclusions:

  • Histological subtype is a key predictor of resection completeness in retroperitoneal sarcoma.
  • Identifying patients at high risk for incomplete resection can guide decisions for complementary therapies.
  • Findings aid in defining patient populations for targeted adjuvant treatments.