Actress Kelly Preston’s death from breast cancer is a reminder of how many women continue to battle this common cancer. As an oncologist, Dr. Cohen answers some questions about breast cancer and explains the importance of BRCA gene testing.

*GROSS ANATOMY IS NOT INTENDED TO BE A SUBSTITUTE FOR PROFESSIONAL MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT. ALWAYS SEEK THE ADVICE OF YOUR PHYSICIAN OR OTHER QUALIFIED HEALTH PROVIDER WITH ANY QUESTIONS YOU MAY HAVE REGARDING A MEDICAL CONDITION.