Jan 3 20Colorectal cancer almost always develops from precancerous polyps (abnormal growths) in the colon or rectum. These tests can be divided into main groups: Stool-based tests: These tests check the stool (feces) for signs of cancer. Screening tests can find precancerous polyps, so that they can be removed before they turn into cancer.
Screening tests can also find colorectal cancer early, when treatment works best. Colorectal Cancer Screening Tests Jan 2 20Screening is the process of looking for cancer in people who have no symptoms. The ACS recommends that people at average risk of colorectal cancer start regular screening at age is can be done either with a sensitive test that looks for signs of cancer in a persons stool (a stool-based test or with an exam that looks at the colon and rectum (a visual exam). What new tests are being developed for colorectal cancer screening?
Colorectal polyps and tumors can release cells and DNA into the bloodstream as well as into stool.Researchers have found that the presence of an altered gene called SEPT in blood can be used to screen for early-stage colorectal cancer and advanced adenomas.In clinical studies, a biomarker test that detects altered SEPT 9.