Englarging Calcification and what it means?

I had a routine mammogram done, and my doctor called and requested a second view mammogram. He said there were calcifications, which I've had for years, but one of them looked like it had gotten "a little bit bigger," and they wanted a closer look to see if it was enlarging. I'm going for this Monday, and I'm very nervous. Is this an ominous sign, of breast cancer? What are the odds? Thanks so much.

[CCF-RN,MSN-rf]

Dear joanie08: Microcalcifications are small calcium deposits found within the breast tissue. There are different types of microcalcifications, and based on their pattern on the mammogram it gives the radiologist clues as to their cause. For instance microcalcifications that are more scattered are probably due to a benign (non-cancerous) cause, a

[surgeon]

calcifications are extremely common in the breast; whether they enlarge or not, well more than 90% are from innocent causes. Cancer can cause calcifications; usually the patterns are different. It's very normal procedure when changes are noted to get additional pictures for more detail. The vast majority turn out fine.

[Joanie08]

Thanks very much. I appreciate your help.

[fighter12]

A related discussion, Should I be worry? was started.