RT Book, Section A1 Stoffel, Elena M. A1 Syngal, Sapna A2 Greenberger, Norton J. A2 Blumberg, Richard S. A2 Burakoff, Robert SR Print(0) ID 55958307 T1 Chapter 23. Hereditary Gastrointestinal Cancer Syndromes T2 CURRENT Diagnosis & Treatment: Gastroenterology, Hepatology, & Endoscopy, 2e YR 2012 FD 2012 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-176848-1 LK accessmedicine.mhmedical.com/content.aspx?aid=55958307 RD 2024/04/18 AB Approximately 3–5% of colorectal cancers are caused by inherited gene mutations associated with hereditary nonpolyposis colorectal cancer (Lynch syndrome) or familial adenomatous polyposis.Genetic testing is clinically available for several hereditary gastrointestinal cancer syndromes and can be used to guide cancer screening recommendations.