What does metastasis mean and how does it happen?
To my knowledge from doing alevel biology, 'metastasis' refers to the general spread of a cancer from an existing tumour (any type) to other parts of the body. This usually happens when the cancer cells move through the lymphatic (lymph) system in the body, or even through the blood. Nasty stuff, hope this is helpful.
Metastasis usually means that the cancer has spread to other parts/organs of the body from the existing tumor/location.
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