Surveillance Colonoscopy for Lynch Syndrome Affected Individuals

In individuals with Lynch syndrome, gastroenterologists and/or endoscopists should have responsibilities for the surveillance colonoscopy of metachronous colorectal cancer in the residual colon and/or rectum after surgery. The same responsibility applies to another Lynch syndrome-associated cancer, ex gastric cancer, and duodenal cancer, and also to surveillance of the relatives who have the same pathogenic variant of Lynch syndrome proband. In this paper, we introduce recent guidelines and reports from multicenter study in addition to an outline of the risk of gastrointestinal cancer in individuals with Lynch syndrome.