...oops, no happy ending yet. (I hate those 'follow up' calls that you get the next day--the ones where the other shoe falls.) The radiologist recommended that even though the needle biopsy was benign, the appearance of the 'abnormality' warrants more treatment (since a needle biopsy can miss bad cells, and this type of abnormality can mimic cancer). So, it looks like I'll probably have to have an excisional biopsy (surgical). Yikes!
I'll know more when I contact my doctor. Hopefully, happy updates soon!