How do doctors screen for colorectal cancer?
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American Cancer Society answered:There are several different tests that can be used to screen for colorectal cancers. These tests can be divided into 2 broad groups:
a. Tests that can find both colorectal polyps and cancer: These tests look at the structure of the colon itself to find any abnormal areas. This is done either with a scope inserted into the rectum or with special imaging (x-ray) tests. Polyps found before they become cancerous can be removed, so these tests may prevent colorectal cancer. This is why these tests are preferred if they are available and you are willing to have them.
b. Tests that mainly find cancer: These involve testing the stool (feces) for signs that cancer may be present. These tests are less invasive and easier to have done, but they are less likely to detect polyps.
There are several different tests that can be used to screen for colorectal cancers. These tests can be divided into 2 broad groups: a. Tests that can find both colorectal polyps and cancer: These tests look at the structure of the colon itself to... More -
Juliet Wilkinson of Honor Society of Nursing (STTI) answered:There are a variety of screening tests for colorectal cancer, ranging from the quick and easy (but not definitive) to the invasive.
- Stool blood tests, such as a fecal occult blood test, can pick up microscopic bleeds within the colon
- Diagnostic imaging studies, such as a barium enema or a computed tomography (CT) scan, can show structural irregularities, such as a mass, within the colon
- Digital rectal exams can alert your doctor to large masses within the rectum
- Colonoscopy or sigmoidoscopy is used to visualize the inside of the colon and detect abnormal tissues
If you have concerns, schedule an appointment with your doctor so you can stop anticipating the worst and start dealing with the actual.
There are a variety of screening tests for colorectal cancer, ranging from the quick and easy (but not definitive) to the invasive. Stool blood tests, such as a fecal occult blood test, can pick up microscopic bleeds within the colon Diagnostic... More
