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Pain; Reduced function, depending on the extent of the tumor; Side effects of chemotherapy (depending on the type of chemotherapy; Spread of the cancer to other nearby tissues (metastasis.
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Metastasis is the movement or spreading of cancer cells from one organ or tissue to another. Cancer cells usually spread via the bloodstream or the lymph system .
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The ability to invade and metastasize are the defining characteristics of a cancer. Invasion refers to the ability of cancer cells to penetrate through the membranes that separate them from healthy tissues and blood vessels.
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