A focal asymmetry is present in the upper outer quandrant. The density on the MLO view has a rounded contour, suggestive of a mass, but the appearance is much less mass-like on the CC. This patient was recalled for spot compression magnification views.
What is your assessment?
Normal (Superimposition of normal breast structures) Persistent focal asymmetry would perform ultrasound Persistent focal asymmetry Probably Benign Persistent focal asymmetry recommend stereotactic biopsy
A persistent focal asymmetry is present in the UOQ
However, it is still not definitely a mass from these images. There is no architectural distortion and no associated calcifications.
Whenever you have this scenario (persistent FA), you always need to perform an ultrasound before making your final assessment:
If it is a cyst the same size as the FA, it is benign.
If it is a definite solid mass at US, then it is suspicious.
If you see nothing but fibroglandular tissue, then this qualifies as Probably Benign. That is, the FA is persistent, but it is likely just breast tissue.
In this case, an ultrasound was performed, and no abnormality was found. Would old films make a difference?
Yes No
YES! Of course!
A finding cannot be Probably Benign if there are old films! Remember?
If the FA is stable it is Benign.
If it is new or growing or getting denser, it is Suspicious.
Probably benign only applies if it is a baseline mammogram
