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The Progress Report Progress never stops. Stay informed with the latest news on breast cancer research, treatment, and prevention.

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AACR 2018 x

Metastasis occurs when a cancer cell leaves the tissue from which it originated and forms a new tumor in a different organ. When breast cancer spreads to the brain, known as brain metastasis, few treatment options exist.

HER2-positive breast cancer represents about 25 percent of all breast cancers. Once a deadly disease with few treatment options, early stage HER2-positive breast cancer is now a treatable disease with a good prognosis for many patients.

Estrogen receptor (ER)-positive breast cancer is the most common form of the disease accounting for about 70 percent of all breast cancers. These tumors require the hormone estrogen to grow.

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Thanks to research, we know breast cancer is not one but many diseases. At the molecular level, research has proven that a cancerous tumor is also comprised of different types of cells. These variations have serious implications for patients.

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