When HER2 is found in a cancer, it means that the cell is responding to those signals because, in general, that whole family of molecules is activated. This is important for several reasons.

What is HER2+ breast cancer? According to the American Cancer Society, about 15% to 20% (or 1 of every 5) of breast tumors have higher levels of a protein known as HER2.These cancers are called ...

HER2, short for human epidermal growth factor receptor 2, describes a protein that plays a role in normal breast cell development. But in some breast cancers, the HER2 gene produces too many proteins.

HER2-positive breast cancer is a breast cancer that tests positive for a protein called human epidermal growth factor receptor 2 (HER2), which promotes the growth of cancer cells. In about 1 of ...

Dr. Alicia Arnold and Dr. Priyanka Raval discuss first- and later-line treatment options for those with ER-positive, ...

HER2-low is a newly designated type of breast cancer that’s still being studied, but research has shown that people with this diagnosis may still respond well to certain HER2-targeted therapies ...

HER2-low breast cancer that cannot be removed by surgery or that has spread to other parts of your body (metastatic), and who have received a prior chemotherapy: For metastatic disease, or; ...

If you’re HER2-positive and your cancer cells also have estrogen receptors (ER positive) or progesterone receptors (PR positive), your breast cancer is what’s called double-positive.

HER2 tumor marker tests are used to determine whether breast cancer is HER2 positive or negative. A person is a candidate for HER2 testing if the cancer is invasive, metastatic, and/or recurrent.

Kristie L. Kahl: Can you explain what the HER2 protein is and what it means for a patient's diagnosis? Dr. Angelique Richardson: Yeah, so HER2 stands for human epidermal growth factor receptor 2. And ...

HER2-positive breast cancer is a breast cancer that tests positive for a protein called human epidermal growth factor receptor 2 (HER2), which promotes the growth of cancer cells. In about 1 of ...

HER2-positive breast cancer is a breast cancer that tests positive for a protein called human epidermal growth factor receptor 2 (HER2), which promotes the growth of cancer cells. In about 1 of ...