[1] European Inst Oncol, Div Breast Surg, I-20141 Milan, Italy
[2] Univ Perugia, Postgrad Sch Gen Surg, I-06100 Perugia, Italy
[3] Fdn Salvatore Maugeri, Div Breast Surg, Pavia, Italy
[4] European Inst Oncol, Div Pathol, Milan, Italy
[5] Univ Milan, Sch Med, Milan, Italy
[6] European Inst Oncol, Div Nucl Med, Milan, Italy