Women will soon be notified about their breast density after a mammogram. Here’s what that means
CNN
Starting this week, all mammography reports and result letters to patients in the United States will be required to include an assessment of a patient’s breast density.
Having dense breasts can put women at higher risk of breast cancer and make it more difficult to spot cancer on a mammogram, but many don’t realize it’s a significant risk. Starting this week, all mammography reports and result letters sent to patients in the United States will be required to include an assessment of breast density. The US Food and Drug Administration’s final rule requiring that mammography facilities notify patients about the density of their breasts goes into effect Tuesday. Breast density is a measurement of how much fibroglandular tissue there is in a woman’s breast versus fatty tissue. The more fibroglandular tissue, the denser the breast. About half of women older than 40 in the United States have dense breast tissue, said radiologist Dr. Kimberly Feigin, interim chief of the Breast Imaging Service and head of the Breast Imaging Quality Assurance at Memorial Sloan Kettering Cancer Center. “We talk about breast density for two reasons. One is that breast density can make it more difficult to spot a cancer on a mammogram, because dense breast tissue – the glandular elements and connective tissue supporting elements – looks white on a mammogram and cancer also looks white on a mammogram,” Feigin said. In other words, dense breast tissue can hide cancer on a mammogram since the tissue appears white on a mammogram, in the same way lumps and tumors appear.