Cancer: Here Today . . . Can breast cancer just disappear on its own? Per-Henrik Zahl of the Norwegian Institute of Public Health in Oslo and colleagues compared breast cancer rates in two groups of more than 100,000 women ages 50 to 64. One group got mammograms every two years, while the second got just one after six years. Surprisingly, the researchers found that the women who got more frequent mammograms had about 22 percent more cases of breast cancer. That finding, reported in the Archives of Internal Medicine, raises the possibility that mammograms detect ... (more)