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Symptoms
By Mayo Clinic staff
A soft tissue sarcoma usually produces no signs and symptoms in its early stages. As the tumor grows, it may cause:
- A noticeable lump or swelling
- Pain, if it presses on nerves or muscles
- A blockage in the stomach or intestines or gastrointestinal bleeding if the tumor is located in the abdomen or digestive tract
Soft tissue sarcomas can occur anywhere in your body, but the largest number — about 60 percent — occur in the arms, legs, hands or feet. Another 20 percent occur in the chest and abdomen. About 10 percent are found in the head and neck.
Soft tissue sarcomas go by a variety of names, depending on the tissue in which they originate. Examples of some sarcomas and their locations include:
| Rhabdomyosarcoma | More common in children, this sarcoma occurs in the skeletal muscles. |
| Leiomyosarcoma | Occurs in the smooth muscles — muscles not under voluntary control. Found most commonly in the uterus, gastrointestinal tract or lining of blood vessels. |
| Hemangiosarcoma | Affects blood vessels, especially those in your arms, legs and trunk. |
| Kaposi's sarcoma | A malignancy that occurs in blood vessel walls. Often affects people with immune deficiencies, such as HIV/AIDS. |
| Lymphangiosarcoma | Affects the lymph vessels and sometimes seen in a limb with chronic swelling (lymphedema). This can be from an area of prior radiation therapy or certain rare chronic infections. |
| Synovial sarcoma | Tissue around joints such as knees and ankles are affected. Typically occurs in children and young adults. |
| Neurofibrosarcoma | Occurs in the peripheral nerves. |
| Liposarcoma | Fatty tissue, often in your legs and trunk, is affected. |
| Fibrosarcoma | Fibrous tissue in your arms, legs or trunk may be affected. |
| Malignant fibrous histiocytoma | A fibrous tissue tumor more likely to occur in the legs. |
| Dermatofibrosarcoma |
Grows in the tissue beneath your skin, and often develops in your trunk or limbs. |
When to see a doctor
Talk to your doctor if you discover a lump that persists or if you notice signs or symptoms that may indicate a soft tissue sarcoma, such as worsening abdominal pain or blood in your stool.
- DeLaney TF. Overview of soft tissue sarcoma. http://www.uptodate.com/index/home.html. Accessed July 10, 2009.
- Detailed guide: Sarcoma - Adult soft tissue cancer. American Cancer Society. http://documents.cancer.org/188.00/188.00.pdf. Accessed July 10, 2009.
- Soft tissue sarcomas: Questions and answers, National Cancer Institute. http://www.cancer.gov/cancertopics/factsheet/Sites-Types/soft-tissue-sarcoma. Accessed July 29, 2009.
- Adult soft tissue sarcoma treatment (PDQ). National Cancer Institute. http://www.cancer.gov/cancertopics/pdq/treatment/adult-soft-tissue-sarcoma/healthprofessional/allpages/print. Accessed July 27, 2009.
- Moynihan TJ (expert opinion). Mayo Clinic. Rochester, Minn. Aug. 2, 2009.
