Metastasis
Metastasis is a process of spreading of pathogens from a primary site to another site. In oncology study, we find a term so called metastasis cancer. There have some common factor to occur metastasis. Through blood stream the cancer cell can leave the original tumor site and can migrate to another site or body parts.
Breast cancer is a very common type of cancer that can spread into other body parts by a metastasis process.
Metastases in plural form metastasis develops when the main cancer cell break away from the original tumor and enter into blood stream or lymphatic system