Genetics and Cancer: How Strong a link?
by Kathryn Murray, MS CGC
Genetics Counselor, Center for Genetics & Maternal-Fetal Medicine
Some women don't believe screening recommendations apply to them because they have no family history of cancer. Yet most cancers aren't inherited. Research shows that approximately 90 percent of cancer cases are due to events after birth rather than an inherited trait. Therefore, screening the entire population is an important public health goal and saves many women's lives each year.
Most cancers arise because of errors in cell replication as new cells are formed to replace dying cells. If enough errors accumulate in the cell line, these cells become cancer cells, no longer able to perform normal functions within the body. These errors aren't inherited but are random events. While some people require increased screening and surveillance due to a genetic history, for 90 percent of women monthly breast self-exams and annual physical exams and mammograms are sufficient.
Appropriate screening tests for your individual situation can be determined during consultation with your physician. In complex cases, consultation with a genetic specialist may be indicated. Your physician can help you find an appropriate specialist in your area.
Genetics Counselor, Center for Genetics & Maternal-Fetal Medicine
Some women don't believe screening recommendations apply to them because they have no family history of cancer. Yet most cancers aren't inherited. Research shows that approximately 90 percent of cancer cases are due to events after birth rather than an inherited trait. Therefore, screening the entire population is an important public health goal and saves many women's lives each year.
Most cancers arise because of errors in cell replication as new cells are formed to replace dying cells. If enough errors accumulate in the cell line, these cells become cancer cells, no longer able to perform normal functions within the body. These errors aren't inherited but are random events. While some people require increased screening and surveillance due to a genetic history, for 90 percent of women monthly breast self-exams and annual physical exams and mammograms are sufficient.
Appropriate screening tests for your individual situation can be determined during consultation with your physician. In complex cases, consultation with a genetic specialist may be indicated. Your physician can help you find an appropriate specialist in your area.
