The Capsule and Colorectal-Cancer Screening — The Crux of the Matter

In the United States and other countries, colonoscopy has emerged as the primary screening test for colorectal cancer. Colonoscopy is believed to prevent colorectal cancer because polyps are removed during the procedure, but randomized trials have not been conducted to show this benefit. Because colonoscopy is an invasive, uncomfortable procedure, with a small but finite risk of complications, there is a demand for less invasive techniques.Imagine a small capsule with a built-in camera, the size of a tablet, that is easily swallowed and can detect cancer and polyps in your large bowel. It causes no discomfort while it travels . . .