Everything About Breast Cancer

In 2001, the process in which breast cancer spreads to other organs, or metastasizes, has been identified by researchers in the Massachusetts General Hospital. Although there may be other means by which breast cancer cells reach other parts of the body, the discovery led to studies on how to prevent the cancer cells from spreading.

For years, the medical community believed that tumors do not have lymph nodes inside them. But with the development of devices to visualize lymphatic vessels, they saw that tumors in mice have lymphatic vessels and are carrying cancer cells, which is transported outside of the tumor, to the lymph nodes of the lungs. The lymphatic vessels served as passage ways for cancer cells to spread.

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