What type of breast cancer remains within the ducts or lobules?

Non-invasive breast cancer is characterized by its growth pattern, as it remains confined to the ducts or lobules of the breast without invading surrounding tissue. This category includes in situ cancers, such as ductal carcinoma in situ (DCIS) and lobular carcinoma in situ (LCIS), which do not spread beyond their original location. In contrast, metastatic breast cancer refers to cases where the cancer has spread to other parts of the body, invasive breast cancer involves the cancer penetrating surrounding breast tissue, and recurrent breast cancer indicates a return of the disease after treatment. Understanding these distinctions is crucial for appropriate diagnosis, treatment planning, and patient education in breast health.