What is calcification and non-invasive cancer of the breast like?

See below: Certain types of microscopic calcium deposits seen on mammogram can represent early stage of non-invasive breast cancer such as dcis (ductal carcinoma in situ) or lcis (lobular). Lcis is not cancerous but considered pre-cancerous. Non-invasive cancers treated with lumpectomy surgery & sometimes hormone & radiation treatments.

If new merits eval: On mammogram calcifications can be seen frequently. Depending on their pattern and whether or not they are new, they can be characterized as either benign or suspicious appearing calcifications. This is a separate topic while related to noninvasive breast cancer which in most women is managed in a similar manner to invasive disease, other than no chemotherapy. This is a very large topic. Acs.Org.