Ultrasound of the breast is used predominately to differentiate cysts from solid masses. Cystic lesions are overwhelmingly ... hyperechoic and anechoic areas. Figure 3. Benign solid lesions ...

There is no ideal diagnostic procedure for the differentiation of cystic ... ultrasound. Thus, it is difficult to distinguish these tumors. Cystadenomas consist of small cystic areas (in most ...