Essential: The only way colon cancer can be cured is by colectomy with removal of adjacent lymph nodes. The primary lesion is polyclonal and continues to produce subsets each capable of a different path of metastasis. If there is a liver or lung lesion they are clonal and cant spread. Leaving a primary can in time result in different paths of spread that may be uncontrollable.
Answered 6/25/2016
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