Screening and Diagnosis
Sentara Martha Jefferson physicians strongly believe in colon and rectal cancer screenings. In the U.S., colorectal cancer is the third most common cancer in men and women, and is the second leading cause of cancer-related deaths.
However, with screening and early diagnosis, it can be prevented and cured. While no one knows the exact causes of colorectal cancer, there are several known risk factors, including age and family history.
If any of the statements below apply to you, talk to your doctor about colon and rectal screenings.
- Testing should begin at age 45 for people with average risk of colorectal cancer.
- Testing can be done by a high sensitivity stool-based test annually, or a visual exam (colonoscopy) every ten years
- Talk to your health care provider about which tests might be good options for you.
- If you are in good health, you should continue regular screening through age 75.
- If you choose to be screened with a test other than colonoscopy, any abnormal test result needs to be followed up with a colonoscopy.
Common screenings we offer:
Physical Exam and History
An exam of the body to check general signs of health, including looking for signs of disease, such as lumps or anything else that seems unusual. A history of the patient’s health habits and past illnesses and treatments will also be taken.
Fecal Occult Blood Test (FOBT)
A test to check stool (solid waste) for tiny amounts of blood. Sometimes cancers or polyps can bleed, causing microscopic amounts of blood in the stool. If this test detects blood, other tests are needed to find the source. Other conditions (such as hemorrhoids) can also cause blood in the stool.
Digital Rectal Exam
An exam of the rectum, normally part of a routine physical. The doctor or nurse inserts a lubricated, gloved finger into the rectum to feel for lumps or anything abnormal.
A series of X-rays of the lower gastrointestinal tract. A liquid that contains barium (a silver-white metallic compound) is put into the rectum. The barium coats the lower gastrointestinal tract and X-rays are taken. This procedure is also called a lower GI series.
A procedure to look inside the rectum and sigmoid (lower) colon for polyps, abnormal areas or cancer. A sigmoidoscope (a thin, lighted tube) is inserted through the rectum into the sigmoid colon. Polyps or tissue samples may be taken for biopsy.
A procedure to look inside the rectum and colon for polyps, abnormal areas or cancer. A colonoscope (a thin, lighted tube) is inserted through the rectum into the colon. Polyps or tissue samples may be taken for biopsy. A colonoscopy is considered the most reliable test for detection and removal of growths that lead to colon cancer.
A procedure that uses a series of X-rays called computed tomography (CT) to make a series of pictures of the colon. A computer puts the pictures together to create detailed images that may show polyps and anything else that seems unusual on the inside surface of the colon. This test is also called colonography or CT colonography.
Computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET) are all advanced technologies often used to pinpoint cancerous tissue.
Genetic Counseling and Testing for Hereditary Colon Cancer Syndromes
Using a blood sample, a physician can often determine if a patient is at risk for hereditary cancer. Therefore, the patient and doctor can begin steps to reduce his or her risk and possibly prevent colorectal cancer.
This ultrasound permits more accurate staging of colorectal and other gastrointestinal malignancies.