statistics on getting DCIS again??

I was given statistics, but I think they were personalized based on my own diagnosis and age. So you might ask your surgeon or oncologist for an opinion.

Basically what I was told was that once I had a breast cancer diagnosis, I was automatically much more at risk for a new breast cancer diagnosis (DCIS or invasive) later on in life. So I will definitely continue to get frequent monitoring (6 months) of the unaffected breast. I was told I could reduce that risk by up to half by choosing to take Tamoxifen for 5 years. For me, the numbers made this sound like a good decision.

As for calcifications, they are very common and don't necessarily mean cancer. Most calcifications are benign. Try not to freak out .

My oncologist told me that once a woman has been diagnosed one time with BC, whether it's DCIS or invasive, she has about double the risk (of someone her age) to be diagnosed again.  In being diagnosed again, it could be either DCIS or invasive (DCIS is after all just invasive cancer that's been caught before it became invasive) and it could be in either breast.

I was 49 when I was diagnosed and the average 49 year old has about an 11% chance of being diagnosed with BC at some point during her remaining lifetime (to age 90).  That meant that my risk was approx. 22%.  Someone who is younger will have a somewhat higher risk, simply because she has more years left to live until she hits 90.  Someone older will have a somewhat lower risk, for the same reason (fewer years left in a "normal" lifespan). While my risk was approx. 22% at the time I was diagnosed, today at the age of 55 my risk is closer to 19%.  This is because I have lived for 6 more years without being diagnosed and now I have fewer years left in which I could be diagnosed (only 35 years till I'm 90 rather than 41 years back when I was diagnosed).  

In addition to age, personal and family health history and other individual risk factors can increase or decrease your risk.  That's important to remember. But my oncologist said that the "double the average risk" is a good rule to go by as a starting point.