- Colorectal Cancer is the third most common cancer in the U.S
- It is the 2nd leading cause of cancer related deaths
- American Cancer Society (ACS) recommends that adults aged 45–75 years undergo screening.
- 20% higher incidence in black persons rather than white, with fatality rate 40% higher in blacks.
What is Colorectal Cancer?
- Most Colorectal Cancers (CRC) begin as a growth, or lesion, in the tissue that lines the inner surface of the colon or rectum.
- Lesions may appear as raised polyps, (a growth that protrudes from a mucous membrane) that may be attached to the inner surface of the colon or rectum with or without a stalk.
- Colorectal polyps are common in people older than 50 years of age, and most do not become cancer. However, a certain type of polyp known as an adenoma (tumor) most likely to become a cancer.
- Most CRCs develop from adenomas, among which “advanced” adenomas are considered to be the clinically relevant precursors of CRC.