Trieste is one of the italian areas with the highest incidence of breast carcinoma. Mammographical screening has been active since 2006 inolving womenn 50-69 years old. Breast screening introduction has been led to an increase both of Tis lesions and of invasive carcinoma. The oserved growth is due to increase of subclinical lesions (T1a and T1b), while lesions larger than 2 cm maintained steady.
