Anyone have to get a stereotactic biopsy after a core needle biopsy

I had an ultrasound guided core needle biopsy last week, in which the surgeon excised 3 samples. The biopsy results came back as "benign breast tissue".  We are now proceeding with a stereotactic biopsy this week (with vacuum) to ensure that the correct area was checked.
I got diagnosed with a 1.6 cm solid mass, smooth borders, posterior acoustic shadowing with somewhat ill defined margins.  I am 37 years old and beside myself with worry.  

[japdip]

I recall that we have responded to your question earlier ..... Most biopsies are accurate, especially when guided by some type of imagery. Perhaps the Radiologist should be doing these biopsies if you have some doubt that the correct area was sampled.