Breast cancer is the most frequently occurring malignant tumour worldwide. Of the more than one million newly diagnosed cases each year, the incidence among women in Germany alone is more than 50,000. That means that every tenth woman is stricken by breast cancer at some point in her life. It numbers among the most frequent causes of death by cancer 1,2,3 , with the average age of onset being approximately 63.5 years of age 4. The goal is to recognize this cancer early with the help of screening procedures while it is still at a favourable stage for treatment. In addition to examination and palpation, there are several other standard diagnostic procedures available such as ultrasound, and, for special indications, magnetic resonance imaging (MRI).