Reference Terms
from Wikipedia, the free encyclopedia


Metastasis is the spread of cancer from its primary site to other places in the body (e.g., brain, liver).

Cancer cells can break away from a primary tumor, penetrate into lymphatic and blood vessels, circulate through the bloodstream, and grow in a distant focus (metastasize) in normal tissues elsewhere in the body.

Note:   The above text is excerpted from the Wikipedia article "Metastasis", which has been released under the GNU Free Documentation License.
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