Which Type of Cancer Can Be Detected Through a Sigmoidoscopy?
A sigmoidoscopy is widely employed by doctors as an effective means of diagnosing ailments of the lower colon and rectum. This procedure can enable the detection of colon cancer with special emphasis on cancer that occurs in the rectum or the sigmoid part of the colon that is a part of the large intestine.
In this process, a thin tube containing a camera (sigmoidoscope) is inserted through the rectum hence enabling the physicians to examine the tissue and develop needed conclusions. Screening by sigmoidoscopy is beneficial because it results in increased survival rates of patients with colorectal cancer in case its manifestation is preceded by an examination.
In addition to cancer, sigmoidoscopy is useful in identification of precancerous growths known as polyps which if not removed can grow into cancer. These doctors ensure they eliminate these polyps before they develop into complete colorectal cancers.
Sigmoidoscopy however does not examine the whole colon, but it is easier and quicker than a colonoscopy if used to diagnose problems in the lower bowel. Lifestyle measures in addition to sigmoidoscopy may be helpful and lifesaving in those over 50 or with risk factors for colorectal cancer.