Dear Corkey11: It is normal for calcifications to develop in the breast tissue. The pattern of their growth will increase or decrease the level of concern. The concern comes when calcifications are clustered. Clusters often form around areas of abnormal tissue growth. This could be many things but generally requires further investigation. Most of the time, these turn out to be benign. Since the calcifications were there before the lump, it is reasonable to carry on with the investigation to be certain all is benign. A lump that comes and goes is unlikely to be malignant, but you should alert your physician to its presence. This lump and the microcalcifications may or may not be related to each other.