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    Question ID:   16188         Current Version: 1
Question: What is synovial sarcoma?
Category: Diseases & Conditions > Cancer
Keywords: symptom, diagnose, diagnosis, treat, treatment, synovial sarcoma
Type: what
Rating:(0 ratings)    Views: 247    Discussions: 0   In Watch Lists: 1  

 
    Answer:

Synovial sarcoma is a type of soft tissue sarcoma. Soft tissue sarcomas are cancers of the muscle, fat, fibrous tissue, blood vessels, or other supporting tissue of the body, including synovial tissue. Synovial tissue lines the cavities of joints, such as the knee or elbow, tendons (tissues that connect muscle to bone), and bursae (fluid-filled, cushioning sacs in the spaces between tendons, ligaments, and bones). Although synovial sarcoma does not have a clearly defined cause, genetic factors are believed to influence the development of this disease.

Symptoms

Synovial sarcoma is a slow-growing tumor. Because it grows slowly, a person may not have or notice symptoms for some time, resulting in a delay in diagnosis. The most common symptoms of synovial sarcoma are swelling or a mass that may be tender or painful. The tumor may limit range of motion or press against nerves and cause numbness. The symptoms of synovial sarcoma can be mistaken for those of inflammation of the joints, the bursae, or synovial tissue. These noncancerous conditions are called arthritis, bursitis, and synovitis, respectively.

Diagnosis

The doctor may use the following procedures and tests to diagnose synovial sarcoma:

  • Biopsy: Tissue is removed for examination under a microscope.
  • Immunohistochemical analysis: Tumor tissue is tested for certain antigen and antibody interactions common to synovial sarcoma.
  • Ultrastructural findings: The tissue is examined using an ultramicroscope and electron microscope.
  • Genetic testing: Tissue is tested for a specific chromosome abnormality common to synovial sarcoma.

Treatment

The type of treatment depends on the age of the patient, the location of the tumor, its size, its grade (how abnormal the cancer cells look under a microscope and how likely the tumor will quickly grow and spread), and the extent of the disease. The most common treatment is surgery to remove the entire tumor with negative margins (no cancer cells are found at the edge or border of the tissue removed during surgery). If the first surgery does not obtain negative tissue margins, a second surgery may be needed.

The patient may also receive radiation therapy before or after surgery to control the tumor or decrease the chance of recurrence (cancer coming back). The use of intraoperative radiation therapy (radiation aimed directly at the tumor during surgery) and brachytherapy (radioactive material sealed in needles, wires, seeds, or catheters, and placed directly into or near a tumor) are under study.

Patients may also receive chemotherapy alone or in combination with radiation therapy.

Source: National Cancer Institute

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