Linear Microcalcifications

On my last mammogram, linear microcalcifications were found.  I think there were less than 10.  What is the risk that this is a maliginancy?  If it is malignant, what kind of breast cancer is it likely to be?  Is it probably invasive?

[Cleveland Clinic]

Dear tanteacher:  Microcalcifications are 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.  In these cases, biopsy is generally recommended.  There is no way, based solely on calcifications, to predict whether this is malignant, the type of malignancy or whether a malignancy will be invasive.

[Netty11]

A related discussion, Is a microcalcification a tumor was started.