Interval breast cancers were larger, of more advanced stages, more poorly differentiated, more likely to have lymph node involvement and had a higher proliferation rate compared with matched screen-detected cancers, according to a study published in the May issue of the Journal of the National Cancer Institute, leading the authors to call for more sensitive screening modalities and different approaches for early detection of fast-growing tumors.

A new day is dawning for breast cancer diagnosis, treatment and monitoring with the help of molecular imaging.