Microcalcifications are actually pinpoint areas that light up on a mammogram. These can be clustered together or scattered over a larger area. Microcalcifications tend to
clusterCluster headaches around an abnormal area, this is why a biopsy is generally recommended when a “cluster” is seen. How the microcalcifications are clustered and the area over which they are clustered helps the surgeon to determine the type of biopsy to be done that would yield the most information.