What Every Woman Should Know About Genetic Testing for Breast Cancer

The thought of developing breast cancer can be concerning for anyone, but it may be especially worrying for those with a history of the disease in their family. Fortunately, genetic testing is available for women who may be at higher risk and want to take a proactive approach to their health.

 Dr. Jennifer Beatty and our skilled, supportive staff at The Breast Place in North Charleston, South Carolina, partner with patients for all of their breast needs. Our care runs the gamut from breastfeeding support to diagnosing and treating breast cancer. We also offer genetic testing.

Developing breast cancer

Breast cancer accounts for about one in three newly diagnosed cancers in women each year in the United States. It can develop in one or both breasts and can begin growing in different areas.

 The most common type starts in the ducts that carry milk to the nipples, known as ductal cancer. Another kind is lobular cancer, which occurs in the glands that make breast milk. Less common types grow in the nipple, the fat and connective tissue, and the blood and lymph vessels.

Choosing genetic testing

Genetic testing can help determine if there are mutations in the DNA that would raise the risk of developing specific health conditions including breast cancer. Undergoing testing is an individualized decision based on a woman's family and personal health history, typically made in conjunction with a health care provider.

 There are a number of factors to keep in mind when it comes to genetic testing.

More than BRCA genes

The BRCA1 and BRCA2 mutations are the most well-known of the collection of breast cancer mutations and are found in about one in 500 women. However, other genetic mutations can increase the risk of breast cancer as well, including PALB2, ATM, and CHEK2.

 Some genetic tests look for a single mutation, while others seek out several. It is important to know which type of test you’re taking and why.

Risk assessment

For women with a history of breast cancer themselves or in their family, employing several risk assessment tools can be a first step. These are mathematical models that a medical professional can use with your personal information to help determine your risk of having a genetic mutation.

While these tools are helpful, they aren't yet completely reliable and may come up with differing results.

The testing process

The testing itself is easy and uses either a blood sample or saliva. A reputable company conducts the test in their lab and returns the results in approximately three weeks.

Genetic counseling

Undergoing genetic counseling is critical when contemplating testing. In addition to explaining the tests and process in detail, they can help discuss other important implications. 

A counselor can help a woman work through questions such as what potential results could mean for her and her family members. If the test comes back positive, your provider can also assist in interpreting the results and suggest next steps.

 If you have a family history of breast cancer and are wondering if you should undergo genetic testing, we can help. Click to book an appointment online or call the office today at 843-797-1941 to consult with Dr. Beatty and her team at The Breast Place.