Colorectal cancer is malignant cells found in the colon or rectum. The
colon and the rectum are part of the large intestine, which is part of
the digestive system. Because colon cancer and rectal cancers have many
features in common, they are sometimes referred to together as
colorectal cancer. Cancerous tumors found in the colon or rectum also
may spread to other parts of the body.
Excluding skin cancers, colorectal cancer is the third most common
cancer in both men and women. It is estimated by the American Cancer
Society that 148,810 colorectal cancer cases are expected in 2008. The
number of deaths due to colorectal cancer has decreased, which is
attributed to increased screening and polyp removal. more
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