Dear Shirl320, What you are probably referring to are microcalcifications. These are actually very fine specks of calcium that light up on a mammogram. Sometimes they can be an indication of cancer or precancer. 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 benign (non-cancerous) causes (such as normal wear and tear on the tissue), a “cluster” of microcalcifications may increase concern that there may be an underlying tumor.
Thank you for your info. It is helpful because it helps me understand why the doctors want to remove the tissue with the microcalcifications. But I wasn't told that there 's possibly a tumor underneath but I haven't spoke with the surgeon yet only my primary care physician.