Different familial cancer syndromes have different risks for cancer and associated symptoms. In general, a person who inherits the syndrome has a higher risk of developing the cancer associated with the syndrome than the general population, but this is not a guarantee that cancer will ever develop. On the other hand, someone who does not inherit the syndrome is not at increased risk for cancer above that of the general population, but this is no guarantee that cancer will not develop, and screening guidelines for the general population should be followed.
Although genetic testing is available for many familial cancer syndromes, there are genes that have yet to be discovered. Each syndrome has special issues surrounding genetic testing; for example, what age should the test be done? How would the results change medical management? Does insurance cover the test? How will the information affect the family? Health professionals familiar with familial cancer syndromes keep up to date with advances in cancer genetics, and work with families to discuss the risks, benefits and limitations of genetic testing.
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Laura L. Stein, M.S., C.G.C.
—A unit of heredity that codes for the formation of a protein. Genes determine how we grow and develop.
—Qualities that are transmitted from parent to offspring in the genes.
—A change in a genetic code which may result in altered function of a gene.
—The clustering of signs and symptoms that characterize a disease.
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Author Info: Laura L Stein M.S., C.G.C., The Gale Group Inc., Gale, Detroit, Gale Encyclopedia of Cancer, 2002 |