[Ultrasound mammography].

The importance of breast ultrasound in the determination of a palpable mass grew in the last years, to examine the radiologically dence breast or cysts it even became the first line method. The sonographic evaluation bases on the following criteria: internal echoes, shape of the tumor, posterior shadowing or enhancement, lateral shadows, compressibility and shifting. As there are only a few pathognomic and definite findings like anechoic cysts with smooth walls and sharp borders, the majority of palpable masses may be determined only approximately without final certainty. Therefore the diagnosis has to be evaluated by combining clinical and imaging analysis but final diagnosis remains for histological examination.