Dear Lisa71971,
Thanks for writing back.
Clustered microcalcifications may harbour cancer in about 30% cases (most of which are non-invasive, which mean that they are in the nascent stage of cancer development).
The most practical way is to follow them up over time. A lesion which does not change over six months can be taken as not of further concern. Otherwise, a biopsy will be required.
I think the plan suggested by your physician is reasonable. You should have a follow up in about six months.
Mammography is not known to increase the risks for cancer. However, there may be a very small chance, which cannot be ruled out completely. On the other hand, it is a very helpful diagnostic test and can save many lives from cancer. You should not hesitate to get another mammogram done.
Hope that this information helps and hope that you will get better soon.
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Best Regards,
Dr. Indranil Ghosh