Joanne M. Jeter, MD

Articles

Approximately 6% of colorectal cancers can be attributed to recognizable heritable germline mutations. Familial adenomatous polyposis is an autosomal dominant syndrome classically presenting with hundreds to thousands of adenomatous colorectal polyps that are caused by mutations in the APC gene.

Genetics of Colorectal Cancer

In many respects, Lynch syndromeserves as the paradigm of cancergenetic syndromes. It is relativelycommon and accounts for approximately3% to 5% of colorectal cancer cases.The genetic basis is clearly understood,and genetic testing is clinically availableand routinely incorporated intoclinical practice. Furthermore, the diagnosishas a profound impact on themanagement of individuals at risk, andinterventions have been shown tosubstantially reduce morbidity andmortality. These advances in our understandingare attributable, in largepart, to the seminal work of Dr. HenryLynch and his colleagues.[1-3]

Author | Joanne M. Jeter, MD

Articles

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