Tugging on the 'malignant' switch in breast cancer

A possible mechanism by which normal cells turn malignant in mammary epithelial tissues, the tissues frequently involved in breast cancer, has been discovered by researchers. Dense mammary tissue has long been recognized as a strong indicator of risk for breast cancer. This is why regular breast examinations are considered essential to early detection. Until now, however, the significance of that tissue density has been poorly understood.
Source: ScienceDaily Headlines - Category: Science Source Type: news