It is well know that breasts vary from person to person in shape, size and mechanical properties of the tissues, so there are some issues for practioners to consider in screening and diagnosing practice:
a difficulty for radiologist that he/she has to tell the difference of lesion based on various density;
FOR ULTRASOUND SPECIALIST
a challenge for ultrasound specialist that she/he has to be experienced enough to differentiate the malignant lesion from the benign one;
a puzzle for clinician that he/she has to be experienced enough to differentiate the lump during CBE;
A problem for researchers that he/she has to create algorithm with individual specific model.
Above all, it is necessary for you to understand that comprehensive but individualized diagnosing package is valuable.