I believe they will tell you this just counts as one tissue sample, even though they take 7 or 8 separate pieces. Even if you have more than one site biopsied on the same breast, I believe they will say it doesn't change your odds. That is what I was told by the experts here.
Dear notmyturn: In general, when referring to a biopsy, one procedure for one abnormality is one biopsy. In your example, the 7 samples equals one biopsy.