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Management of Locally Recurrent Retroperitoneal Sarcoma in the Adult: An Updated Consensus Approach from the Transatlantic Australasian Retroperitoneal Sarcoma Working Group

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Abstract

Background

Surgery is the mainstay of treatment for retroperitoneal sarcoma (RPS), but local recurrence is common. Biologic behavior and recurrence patterns differ significantly among histologic types of RPS, with implications for management. The Transatlantic Australasian RPS Working Group (TARPSWG) published a consensus approach to primary RPS, and to complement this, one for recurrent RPS in 2016. Since then, additional studies have been published, and collaborative discussion is ongoing to address the clinical challenges of local recurrence in RPS.

Methods

An extensive literature search was performed, and the previous consensus statements for recurrent RPS were updated after review by TARPSWG members. The search included the most common RPS histologic types: liposarcoma, leiomyosarcoma, solitary fibrous tumor, undifferentiated pleomorphic sarcoma, and malignant peripheral nerve sheath tumor.

Results

Recurrent RPS management was evaluated from diagnosis to follow-up evaluation. For appropriately selected patients, resection is safe. Nomograms currently are available to help predict outcome after resection. These and other new findings have been combined with expert recommendations to provide 36 statements, each of which is attributed a level of evidence and grade of recommendation. In this updated document, more emphasis is placed on histologic type and clarification of the intent for surgical treatment, either curative or palliative. Overall, the fundamental tenet of optimal care for patients with recurrent RPS remains individualized treatment after multidisciplinary discussion by an experienced team with expertise in RPS.

Conclusions

Updated consensus recommendations are provided to help guide decision-making for treatment of locally recurrent RPS and better selection of patients who would potentially benefit from surgery.

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Correspondence to William W. Tseng MD, Carol J. Swallow MD, PhD or Alessandro Gronchi MD.

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These authors disclose the following financial relationships: Piotr Rutkowski: honoraria for lectures and Advisory Boards from BMS, MSD, Novartis, Pierre Fabre, Sanofi, Merck, Blueprint Medicines and Philogen outside of the scope of this article; David Gyorki: Speaker bureau – BMS, Novartis, Advisory Board – Amgen, Bayer, Q Biotics. Provectus; Silvia Stacchiotti: Institutional research funding from Amgen Dompe, Advenchen, Bayer, Blueprint Medicines, Deciphera, Eli Lilly, Epizyme, Daiichi Sankyo Pharma, GSK, Karyopharm, Novartis, Pfizer, PharmaMar, SpringWorks, and Hutchinson MediPharma International Inc; honoraria from Aadi, Bayer, Deciphera, Daiichi, Novartis, Pharmamar; fees for expert testimony from Bavarian Nordic and Epizyme; and participation on Advisory Board for Bayer, Deciphera, Eli Lilly, Daiichi, Ikena, Maxivax, Novartis, Rain Therapeutics, Pharmamar outside the submitted work. Christina Roland: Research Funds – Bristol Myers Squibb. All other authors have nothing to report.

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Tseng, W.W., Swallow, C.J., Strauss, D.C. et al. Management of Locally Recurrent Retroperitoneal Sarcoma in the Adult: An Updated Consensus Approach from the Transatlantic Australasian Retroperitoneal Sarcoma Working Group. Ann Surg Oncol 29, 7335–7348 (2022). https://doi.org/10.1245/s10434-022-11864-y

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  • DOI: https://doi.org/10.1245/s10434-022-11864-y

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