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Colon cancer is a cancer of the large bowel that goes from the small bowel to the ***.
It is when you get abnormalities to the surface of the bowel or what we called the mucosa.
Usually, it develops in steps where you get an abnormal lining of the bowel what we called
dysplasia. It then becomes into an adenoma which is a small growth that is benign and
that goes into something called carcinoma in situ where that polyp or that growth becomes
a cancer, but it is not invading into the bowel and then that turns into a more malignant
disease that becomes an invasive carcinoma or lining of the bowel and that some point
and time if it is not treated, it gets through the blood stream or to the lymph nodes and
it metastasizes to either lymphatics or into the blood stream to other portions of the
body. Certainly, this is a lining of the bowel abnormality that with screening can be caught
very early and one can actually cutdown the incidence of colon cancer with screening because
you can catch a lesion before becomes malignant.