breast cancer

Each year the U.S. spends billions of dollars on unnecessary tests and treatments that result from inaccurate mammograms, some scientists say. They're calling for more selective screening.

Mary Harris found out she was pregnant the day before she had scheduled surgery for breast cancer. It turns out there is limited data on how chemotherapy during pregnancy affects a baby.

The Food and Drug Administration has approved a drug that thwarts some enzymes breast cancer cells use to evade treatment with estrogen-blocking drugs.

Tired of waiting for a cure for breast cancer, a coalition of activists now leans hard on Congress to steer money to particular research projects. Critics say that approach may miss promising leads.

Genetic tests are recommended for women with a family history of breast cancer. One researcher says all women should be screened, but others say there's not enough evidence that they are at risk.