Left breast digital mammography shows a well-circumscribed oval shaped mass of mixed density located at the superior lateral aspect (UOQ) of the left breast (partially included on CC projection given its posterior location).
Notice the thin capsule surrounding the mass (especially appreciable in the MLO projection). In this particular case, given the high breast density, it is difficult to appreciate the typical image "breast within a breast" or a "slice of sausage" appearence.
Notice an additional rounded and well-circumscribed lesion at the 3:00 o’clock position.