Symptoms: In their early stages, soft-tissue sarcomas usually do not cause symptoms. Because soft tissue is relatively elastic, tumors can grow rather large, pushing aside normal tissue, before they are felt or cause any problems. The first noticeable symptom is usually a painless lump or swelling. As the tumor grows, it may cause other symptoms, such as pain or soreness, as it presses against nearby nerves and muscles.
Treatment: The stage of the sarcoma is based on the size and grade of the tumor, and whether the cancer has spread to the lymph nodes or other parts of the body (metastasized). Treatment options for soft-tissue sarcomas include surgery, radiation therapy, and chemotherapy. Surgery is the most common treatment for soft-tissue sarcomas. It is important to obtain a margin free of tumor to decrease the likelihood of local recurrence and give the best chance for eradication of the tumor.
Statistics: STS has an incidence of approximately 3/100,000 new cases per year, representing 2% of the overall mortality from cancer. According to data from GEIS (Spanish research group in sarcomas) soft tissue sarcomas (STS) have an incidence of around 3/100,000 new cases per year, which represents 2% of the overall mortality from cancer. The highest incidence is situated in patients around 50 years of age. The five-year survival rate of patients with STS is around 90% when detected early (stage I), that is, when the tumour is small and with no metastasis. However, the five-year survival rate in patients with metastatic disease is 10-20% . The estimated life expectancy in metastatic patients is 8-12 months after receiving the first line of cytotoxic therapy .