To say that some women are predisposed to breast cancer is not an altogether accurate statement. While a woman with a BRCA1 or BRCA2 is statistically more likely to develop breast cancer than a woman without this genetic alteration, not every woman with an altered BRCA1 or BRCA2 will get breast cancer. Remember, genetics is just one of a many known risk factors. An altered gene in itself is not capable of causing cancer. In fact, most cases of breast cancer do not involve an altered BRCA1 or BRCA2 gene. Statistics show that at most, 1 in 10 breast cancers cases involve an inherited altered gene. What's more not all inherited breast cancer involves BRCA1 or BRCA2. |
