Lynch syndrome (also known as HNPCC or hereditary nonpolyposis colorectal cancer) is an autosomal dominant genetic condition that has a high risk of colon cancer as well as other cancers including endometrial cancer (second most common), ovary, stomach, small intestine, hepatobiliary tract, upper urinary tract, brain, and skin. The increased risk for these cancers is due to inherited mutations that impair DNA mismatch repair. It is a type of cancer syndrome.
Eric Dozois, M.D., a colorectal surgeon at Mayo Clinic, discusses signs, management, and treatment of Lynch Syndrome, which is an inherited condition that increases your risk of colon cancer and other cancers.