Wednesday, May 20, 2015

Dense Breasts Are Just One Part Of The Cancer Risk Calculus


Almost half the states now require doctors to tell women if they have dense breasts because they're at higher risk of breast cancer, and those cancers are harder to find. But not all women with dense breasts have the same risks, a study says.
Those differences need to be taken into account when figuring out each woman's risk of breast cancer, the study says, and also weighed against other factors, including family history, age and ethnicity.
The researchers looked at the records of 365,426 women who had a normal mammogram, then looked to see which ones were diagnosed with breast cancer within a year — a cancer that may have been missed by the mammogram.
All told, 47 percent of the women in the study had dense breasts. But just half of those women had a higher cancer risk. The women who got cancer were more likely to be older and white, have a family history of breast cancer, and to have "heterogeneously" or "extremely" dense breasts, the top two categories of breast density.
The results were published Monday in Annals of Internal Medicinenpr

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