Susan Derwin saw a call coming in. She had turned 60 that day, but this would not be a celebratory message. It was her doctor's office calling, with results from her routine screening mammogram.

A large study showed that for most patients, having both breasts removed after cancer was detected in one made no difference. By Gina Kolata For the more than 310,000 women diagnosed with breast ...

Despite a significant increase in women with unilateral breast cancer who received a bilateral mastectomy, this study found no survival benefit compared with other treatment options. Although removing ...