The European Guidelines developed for mammography screening have contributed to the general discussion on quality assurance and the important tasks of the health professionals dealing with breast cancer screening. The cooperation of each medical discipline is of utmost importance in order to achieve optimal results and eventually a mortality reduction. The following guidelines are based on the British NHS quality assurance guidelines for surgeons in breast cancer screening and modified to meet the different needs in the European Countries. The term "surgeon" denotes a medical doctor trained and involved in the surgical treatment of breast diseases. The members of the working group who participated in order to adapt these guidelines are listed above. We hope that this document will contribute towards a more comprehensive approach of breast cancer screening-detected lesions throughout Europe.