Stages

The stage describes how much cancer there is and how far it has spread. Soft tissue sarcomas range from stages 1 through 4. A lower stage generally means the cancer is more limited. A higher stage means it is more advanced or has spread to other parts of the body.

Healthcare professionals determine the cancer's stage using several pieces of information, commonly summarized as TNM grade. TNM stands for:

  • Tumor: The size of the primary tumor.
  • Node: Whether the cancer has spread to nearby lymph nodes.
  • Metastasis: Whether the cancer has spread to distant parts of the body.

The grade describes what the cancer cells look like under the microscope. The staging system divides sarcomas into 3 grades, 1 to 3. Low-grade tumors tend to be slow-growing and slower to spread. They often have a better outlook, called prognosis, than higher-grade tumors.

Staging isn't identical for every sarcoma. The tumor's location and type matter, and bone sarcomas have their own staging considerations. So a person's sarcoma can't necessarily be assigned a stage based on tumor size alone.

Both tumor grade and stage can help your care team determine the most appropriate treatment.

Sept. 05, 2026

Living with undifferentiated pleomorphic sarcoma (UPS)?

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  1. Folpe AL, et al. Undifferentiated pleomorphic sarcoma, myxofibrosarcoma, and atypical fibroxanthoma/pleomorphic dermal sarcoma. In: Enzinger and Weiss's Soft Tissue Tumors. 8th ed. Elsevier; 2027. https://www.clinicalkey.com. Accessed Aug. 25, 2026.
  2. Ryan CW, et al. Clinical presentation, diagnostic evaluation, and staging of soft tissue sarcoma. https://www.uptodate.com/contents/search. Accessed Aug. 25, 2026.
  3. NCI dictionary of cancer terms. National Cancer Institute. https://www.cancer.gov/publications/dictionaries/cancer-terms. Accessed Aug. 25, 2026.
  4. Gebhardt MC. Surgical resection of primary soft tissue sarcoma of the extremities. https://www.uptodate.com/contents/search. Accessed Aug. 25, 2026.
  5. DeVita VT Jr, et al., eds. Soft tissue sarcomas. In: DeVita, Hellman, and Rosenberg's Cancer: Principles and Practice of Oncology. 12th ed. ProQuest Ebook Central. Wolters Kluwer; 2023. Accessed Aug. 25, 2026
  6. Soft tissue sarcoma. National Comprehensive Cancer Network. https://www.nccn.org/guidelines/guidelines-detail?category=1&id=1464. Accessed Aug. 25, 2026.
  7. Soft tissue sarcoma treatment (PDQ) — Health professional version. National Cancer Institute. https://www.cancer.gov/types/soft-tissue-sarcoma/hp/adult-soft-tissue-treatment-pdq. Accessed Aug. 25, 2026.
  8. Makris EA, et al. Natural history of undifferentiated pleomorphic sarcoma: Experience from the US Sarcoma Collaborative. Journal of Surgical Oncology. 2024; doi:10.1002/jso.27620.
  9. Girgis AG, et al. Advancing prognostics in oncology: Developing a machine learning model for predicting 2-year and 5-year survival rates in patients with undifferentiated pleomorphic sarcoma. Annals of Surgical Oncology. 2025; doi:10.1245/s10434-025-18249-x.
  10. Osteosarcoma and undifferentiated pleomorphic sarcoma of bone treatment (PDQ) — Health professional version. National Cancer Institute. https://www.cancer.gov/types/bone/hp/osteosarcoma-treatment-pdq. Accessed Aug. 25, 2026.
  11. Stages of soft tissue sarcomas. American Cancer Society. https://www.cancer.org/cancer/types/soft-tissue-sarcoma/detection-diagnosis-staging/staging.html. Accessed Aug. 25, 2026.
  12. Survival rates for soft tissue sarcomas. American Cancer Society. https://www.cancer.org/cancer/types/soft-tissue-sarcoma/detection-diagnosis-staging/survival-rates.html. Accessed Aug. 25, 2026.
  13. Bone cancer. American Cancer Society. https://www.cancer.org/cancer/types/bone-cancer.html. Accessed Aug. 25, 2026.
  14. Cancer stat facts: Soft tissue including heart cancer. National Cancer Institute. https://seer.cancer.gov/statfacts/html/soft.html. Accessed Aug. 25, 2026.
  15. Carlson LE, et al. The Society for Integrative Oncology-American Society of Clinical Oncology joint guidelines on integrative therapies for symptom management — Overview and key recommendations. Journal of Integrative and Complementary Medicine. 2024; doi:10.1089/jicm.2024.0452.
  16. Ami TR. Allscripts EPSi. Mayo Clinic. April 5, 2023.
  17. Mowery YM, et al. Safety and efficacy of pembrolizumab, radiation therapy, and surgery versus radiation therapy and surgery for stage III soft tissue sarcoma of the extremity (SU2C-SARC032): An open-label, randomised clinical trial. The Lancet. 2024; doi:10.1016/S0140-6736(24)01812-9.