Archived Case 50

If the ultrasound shows a mass or other suspicious finding then it would be considered BI-RADS 4, Suspicious, and a biopsy should be performed. If the ultrasound is entirely negative, this would fit into a “Probably Benign” category.

Now, if we had called this Probably Benign originally, we probably would have picked up on this growth 6 months sooner. If we had chanced to see some finding on ultrasound perhaps we would have caught it a year ago.

This was called stable. The patient did not come back for 3 more years. Her screening views and subsequent ultrasound:

I would have guessed this was a lobular carcinoma. It was very slow growing, and looked like breast tissue, as lobulars often do. The improtant thing is that you always biopsy developing densities, even if it looks like breast tissue.

To see a case of PASH with a very similar presentation, see related case below.