Do you know that there are several types of cancer that involved gastrointestinal tract?
One of the most common cancer that people doesn’t recognize is Colorectal Cancer (CRC). Colorectal cancer is the fourth most common cause of death from cancer, almost 700,00 was estimated to face cancer deaths.
Globally, it is one of the cancers whose incidence is increasing because over next 15 years, the number of cases of colorectal cancer was expected to increase by 60% to more than 2.2 million.
Colorectal cancer is a cancer that starts in the colon or the rectum. These cancers can also be named colon cancer or rectal cancer, depending on where they start. Colon cancer and rectal cancer are often grouped together because they have many features in common.
Cancer starts when cells in the body start to grow out of control. Cells in nearly any part of the body can become cancer, and can spread to other areas of the body.
Most colorectal cancers start as a growth on the inner lining of the colon or rectum. These growths are called polyps.
When cancer cells are in the wall, they can then grow into blood vessels or lymph vessels (tiny channels that carry away waste and fluid). From there, they can travel to nearby lymph nodes or to distant parts of the body.
The stage (extent of spread) of a colorectal cancer depends on how deeply it grows into the wall and if it has spread outside the colon or rectum.
-International Agency for Research on Cancer, GLOBOCAN 2018, World Health Organization (WHO).
-World Cancer Research Fund International/American Institute for Cancer Research. Continuous Update Project Report: Diet, Nutrition, Physical Activity and Colorectal Cancer. 2017