An individual with sarcoma should be assessed by a multi-disciplinary team of specialists to determine which modalities of treatment are best suited for them. All sarcoma cases seen at SingHealth institutions are reviewed at a weekly multidisciplinary tumour board, where decisions on treatment are made following discussions, so that care is holistically managed.
Patients who have sarcoma localised to the organ of origin would undergo surgery to remove the entire cancer and surrounding normal tissue, where possible. In some patients, additional radiotherapy to the site of cancer is required after surgery, to prevent cancer recurrence at the same site. This can happen if the cancer mass is large to begin with. In some particular subtypes of sarcoma, additional chemotherapy may also be required after curative surgery.
Radiation or radiotherapy uses high-energy X-rays to kill cancer cells. The aim of radiotherapy is to destroy cancer cells and spare as many normal cells as possible. For sarcoma patients, radiotherapy to the arms and legs is associated with redness of the skin and hair loss over the radiated area. Radiotherapy to the head and neck region may cause sides effects such as temporary redness of the skin, loss of appetite, loss of salivation and dryness of the mouth. Radiotherapy to the stomach region may cause temporary nausea and vomiting, loss of appetite, and occasional gastric pain. Your doctor will discuss with you how to manage these side effects.
Chemotherapy is the use of anti-cancer drugs to destroy cancer cells. Patients with osteogenic sarcoma usually require chemotherapy to prevent cancer recurrence after surgery. This chemotherapy is administered into the veins in the hand and may cause nausea and vomiting, temporary hair loss, lowered blood count and occasional numbness of the fingers and toes. Some patients with localised soft tissue sarcoma of the limbs benefit from chemotherapy administered post-surgery.
In patients with advanced stage sarcoma, chemotherapy can slow the course of the cancer and provide relief from cancer-related symptoms. Side effects may include temporary or complete hair loss, nausea and vomiting, ringing of the ears, numbness of the fingers and toes, and loss of appetite. More serious side effects may include organ dysfunction (including the heart, kidney and gastrointestinal tract) and serious infections as a result of bone marrow suppression. Your doctor will discuss with you how to manage these side effects.
One particular subtype of sarcoma known as gastrointestinal stromal tumour (GIST), which usually starts in the digestive tract, can be treated with an oral medication known as Imatinib. This relatively new medication specifically targets the mutated protein that causes the cancer, as opposed to chemotherapy that affects both normal and cancerous cells. Imatinib is used both after curative surgical removal of localised GIST, and in advanced GIST.
Immunotherapy is a drug treatment that trains your immune system to fight the cancer.
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