There is a growing awareness of evaluating one’s genetic cancer risk today. When it comes to assessing your chances of inheriting hereditary cancers, genetic testing has become an invaluable tool. Yet, many people are confused about which test to choose: a more focused BRCA test or a comprehensive hereditary cancer screening.
At LifeCell Diagnostics, we understand that making informed decisions about genetic testing helps you detect cancer risk early on, enabling you to make required lifestyle changes early, take timely medical help and give you complete peace of mind. Read on to understand the key differences between the BRCA vs Hereditary Cancer Panel to make an informed choice.
What is BRCA Testing?
BRCA testing is done to assess two genes – BRCA1 and BRCA2. These are responsible for manufacturing proteins that suppress tumour growth. When there are mutations in these genes, the risk of breast and ovarian cancer increases.
Women with a harmful BRCA1 or BRCA2 mutation have a 60% chance of developing breast cancer by the age of 70-80, which is around 13% in the general population.These mutations also increase ovarian cancer risk to 39-58% for BRCA1 and 13-29% for BRCA2 carriers.
BRCA testing is typically recommended for individuals with:
- A strong family history of breast or ovarian cancer
- Early-onset breast cancer (before age 50)
- Multiple primary cancers
- Ashkenazi Jewish ancestry
- A known BRCA mutation in the family
What is a Hereditary Cancer Panel?
A hereditary cancer panel, sometimes referred to as multigene panel testing, looks at several genes at once that are linked to different hereditary cancer syndromes. Mutations associated with breast, ovarian, colorectal, pancreatic, melanoma, and numerous other cancers can be found by these panels.
BRCA1 and BRCA2 are commonly found in hereditary cancer panels, along with other high-risk genes like Lynch syndrome genes, Li-Fraumeni syndrome, Cowden syndrome, and hereditary diffuse gastric cancer. This all-encompassing method can find genetic mutations that targeted BRCA testing would overlook.
BRCA vs Hereditary Cancer Panel: Key Differences
Scope of Analysis
The main difference between BRCA vs Hereditary Cancer Panel testing lies in the scope of analysis. While the BRCA test only examines two genes – BRCA1 and BRCA2, the hereditary cancer panel assesses many other cancer-related genes at the same time. As per research, around 50% of patients who get a negative result for BRCA mutations have a strong family history of cancer, and they may be carrying other cancer genes.
Cost Considerations
The BRCA test is less expensive than the hereditary comprehensive cancer panel since it analyses fewer genes. However, the cost difference has narrowed considerably in recent years.
Clinical Utility
The BRCA test provides targeted information about breast and ovarian cancer risk, while the hereditary cancer panel provides broader insights.
Turnaround Time
The BRCA test requires around 2-3 weeks of turnaround time for results, while the comprehensive panels may take 3-4 weeks due to their wider analysis. So, if you only have a breast cancer risk and would like quicker results, you can go in for the BRCA test.
Which Test Should You Choose?
Choose BRCA Testing If:
- There is a known BRCA mutation in your family.
- Breast and ovarian cancers are the only cancers in your family history.
- Your physician suggests targeted BRCA testing.
- You would rather take a more focused, cost-effective approach.
Choose a Hereditary Cancer Panel If:
- There are several types of cancer in your family.
- You were diagnosed with cancer at a very young age.
- Previous BRCA testing was negative, but cancer risk remains high.
- You are looking for thorough information regarding different cancer risks.
Genetic testing is a crucial tool for cancer prevention and early detection because, according to the National Cancer Institute, 5–10% of all cancers are inherited.
Understanding Your Results and Next Steps
Knowing your results is essential, regardless of the test you select. The outcomes of genetic testing can be:
- Positive: A dangerous mutation was discovered
- Negative: No mutation was found.
- Variant of Uncertain Significance (VUS): A change was discovered, but its significance is unknown.
Research indicates that around 41% of people undergoing multigene panel testing receive a VUS result, which necessitates careful interpretation and follow-up.
Making an Informed Decision with LifeCell Diagnostics
LiceCell Diagnostics provides extensive genetic testing options such as our BRCA1 & BRCA2 Gene Analysis. To help you understand your risk of developing breast and ovarian cancer, this test offers a thorough analysis of the BRCA1 and BRCA2 genes. Advanced sequencing technology is used for the test, and genetic counselling support is provided to help you understand the results and make well-informed healthcare decisions.
Whether you need a BRCA test or a Hereditary Cancer Panel test, it’s best to take a customised approach based on your doctor’s recommendations and on your personal health concerns. Regularly monitoring your genetic risk and overall health will help you detect problems early and take timely medical guidance. So consult your doctor today to know the right test for you.
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