U/s then biopsy
If the mammogram
is "suspicious", then a biopsy
is indicated to establish a diagnosis.
80-85% will still end up benign. In almost all cases the sampling should be by needle (core) biopsy. In general, one shouldn't go to the or without a diagnosis. An u/s may see the lesion and guide the bx. If not, then a stereotactic bx can be done. All are office procedures best done by a breast surgeon.