RT Journal Article T1 SEOM Clinical Guideline of management of soft-tissue sarcoma (2020). A1 de Juan Ferré, A A1 Álvarez Álvarez, R A1 Casado Herráez, A A1 Cruz Jurado, J A1 Estival González, A A1 Martín-Broto, J A1 Martínez Marín, V A1 Moreno Vega, A A1 Sebio García, A A1 Valverde Morales, C K1 Guidelines K1 Sarcoma K1 Soft-tissue tumors K1 Uncommon tumors AB Soft-tissue sarcomas constitute an uncommon and heterogeneous group of tumors of mesenchymal origin. Diagnosis, treatment, and management should be performed by an expert multidisciplinary team. MRI/CT of the primary tumor and biopsy is mandatory before any treatment. Wide surgical resection with tumor-free tissue margin is the mainstay for localized disease. Radiotherapy is indicated in large, deep, high-grade tumors, or after marginal resection not suitable for re-excision. Perioperative chemotherapy should be discussed for high-risk sarcomas of the extremities and trunk-wall. In the case of oligometastatic disease, patients should be considered for local therapies. First-line treatment with anthracyclines (or in combination with ifosfamide) is the treatment of choice. Other drugs have shown activity in second-line therapy and in specific histological subtypes but options are limited and thus, a clinical trial should always be discussed. YR 2021 FD 2021-01-06 LK http://hdl.handle.net/10668/16929 UL http://hdl.handle.net/10668/16929 LA en DS RISalud RD Apr 6, 2025