Adding an ultrasound to annual mammograms for women at higher-than-average breast cancer risk helps catch more early-stage tumors -- but also ups the chance that healthy women will get follow-up biopsies unnecessarily, according to a new study.
Adding an ultrasound to annual mammograms for women at higher-than-average breast cancer risk helps catch more early-stage tumors -- but also ups the chance that healthy women will get follow-up biopsies unnecessarily, according to a new study.