There aren't many known risk factors for soft tissue sarcomas. But your risk may be increased due to:

  • Age. Soft tissue sarcomas can occur at any age, but overall are more common in older adults. The average age at diagnosis is 57 years. Certain types of sarcomas are more common in children, however.
  • Chemical exposure. Being exposed to certain chemicals, such as vinyl chloride and dioxin, can increase the risk of soft tissue sarcomas.
  • Radiation exposure. Previous radiation treatment for other cancers can increase the risk of soft tissue sarcomas.
Sep. 13, 2011