When cancer develops in one tissue and spreads to other parts of the body, it is called the metastasis of cancer.
The spread of cancer to a different region of the body from where it started to grow is called metastasis of cancer. This is the fourth stage of cancer.
When the tumor grows extra large in the source region, some of the cancer cells from this tumor break free. After breaking free, these cancer cells enter the bloodstream or the lymphatic system to spread to different regions.
When it reaches and settles at a new spot, the cancerous growth begins in that region. Many cells from the original tumor can break away like that. This leads to the metastasis of cancer.
Therefore, the spread of cancer to other regions is called metastasis of cancer.
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