People with Lynch syndrome may experience:
- Colon cancer that occurs at a younger age, especially before age 50
- A family history of colon cancer that occurs at a young age
- A family history of endometrial cancer
- A family history of other related cancers, including ovarian cancer, kidney cancer, stomach cancer, small intestine cancer, liver cancer and other cancers
When to see a doctor
If you have concerns about your family history of colon or endometrial cancer, bring it up with your doctor. Discuss getting a genetic evaluation of your family history and your cancer risk.
If a family member has been diagnosed with Lynch syndrome, tell your doctor. Ask to be referred to a genetic counselor. Genetic counselors are trained in genetics and counseling. They can help you understand Lynch syndrome, what causes it and what type of care is recommended for people who have Lynch syndrome. A genetic counselor can also help you sort through all the information and help you understand whether genetic testing is appropriate for you.
Mar. 10, 2012
- Genetics of colorectal cancer (PDQ). National Cancer Institute. http://www.cancer.gov/cancertopics/pdq/genetics/colorectal/healthprofessional. Accessed Jan. 24, 2012.
- Lindor NM, et al. Concise handbook of familial cancer susceptibility syndromes. Journal of the National Cancer Institute Monographs. 2008;38:1.
- Colorectal cancer screening. Fort Washington, Pa.: National Comprehensive Cancer Network. http://www.nccn.org/professionals/physician_gls/f_guidelines.asp. Accessed Jan. 31, 2012.
- Lindor NM, et al. Recommendations for the care of individuals with an inherited predisposition to Lynch syndrome: A systematic review. Journal of the American Medical Association. 2006;296:1507.
- Abeloff MD, et al. Abeloff's Clinical Oncology. 4th ed. Philadelphia, Pa.: Churchill Livingstone; 2008:180.
- Backes FJ, et al. Lynch syndrome. Clinical Obstetrics and Gynecology. 2011;54:199.
- Making sense of your genes: A guide to genetic counseling. National Society of Genetic Counselors. http://www.nsgc.org/client_files/GuidetoGeneticCounseling.pdf. Accessed Jan. 24, 2012.
- Kaltenbach T, et al. Image-enhanced endoscopy is critical in the detection, diagnosis and treatment of non-polypoid colorectal neoplasms. Gastrointestinal Endoscopy Clinics of North America. 2010;20:471.
- Pande M, et al. Smoking and colorectal cancer in Lynch syndrome: Results from the Colon Cancer Family Registry and the University of Texas M.D. Anderson Cancer Center. 2010;16:1331.
- Burn J, et al. Long-term effect of aspirin on cancer risk in carriers of hereditary colorectal cancer: An analysis from the CAPP2 randomised controlled trial. Lancet. 2011;378:2081.
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