Fine needle aspiration cytology (FNAC) is widely used as first choice approach for the definition of the radiologically dubious or sospicious cases to confim their benign origin. Trieste's Breast Unit has been using FNAC as first morphological investigation for many years, in particular in 2008-2009, it was used as first diagnostic approach for 1835 cases (88.6%) out of 2091. The use of five diagnostic categories in cytology reporting has found wide acceptance among radiologists and surgeons, because it allows to apply to each lesiod, a precise diagnostic/terapeutic pathway and it represents, in oir experience, an essential element of the report itself.
