What Happens
Cancer is the growth of
abnormal cells in the body. These extra cells grow together and form masses,
lumps, or tumors. In
colorectal cancer, these growths usually start as
harmless (benign) polyps in the
large
intestine
(colon or rectum).
Colon polyps are common and most do not cause
problems. However, if polyps are not detected and removed, some of them can
turn into cancer.
If the cancer is allowed to continue growing, it
eventually will invade and destroy nearby tissues and then spread farther.
Colorectal cancer spreads first to nearby lymph nodes. From there it may spread
to other parts of the body, usually to the liver. It may also spread to the
lungs, bones, or brain.
Metastatic or
recurrent colorectal cancer occurs when cancer cells travel, through
either the bloodstream or the
lymph
system, to other parts of the body and continue
to grow in their new location. Recurrent colorectal cancer occurs when the
cancer begins to grow again months or years after treatment.
How
colorectal cancer will affect your life span depends on the
stage of your cancer. A cancer's stage depends on how
far it has spread.
The 5-year survival rate for cancer that has
spread to other parts of the body is 10%.1 The 5-year
survival rate is the percentage of people who are still alive 5 years or longer
after their cancer was discovered. It is important to remember that this is
only an average. Everyone is different, and these numbers do not necessarily
show what will happen to you.