What is Lynch?
Lynch syndrome, also known as hereditary non-polyposis colorectal cancer (HNPCC), is the most common cause of hereditary colorectal (colon) cancer.
People with Lynch syndrome are more likely to get colorectal cancer and other cancers, and at a younger age (before 50), including
Uterine (endometrial),
Stomach,
Liver,
Kidney,
Brain, and
Certain types of skin cancers.
Lynch syndrome causes about 4,200 colorectal cancers and 1,800 uterine (endometrial) cancers per year.
Colorectal cancer also can be caused by mutations in genes other than those related to Lynch syndrome. This means that some families with a history of colorectal cancer will not have mutations in a Lynch syndrome gene. These mutations might be picked up through genetic testing using multigene panels, which look for mutations in several different genes at the same time.
(https://www.cdc.gov/genomics/disease/colorectal_cancer/lynch.htm#:~:text=Lynch%20syndrome %2C%20also%20known%20as,age%20(before%2050)%2C%20including)