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Breast Cancer

Breast cancer is uncontrolled growth of cells in the breast. About 1 in 8 U.S. women will develop invasive breast cancer over the course of her lifetime.

Memorial Hermann Cancer Centers, in partnership with Memorial Hermann Breast Care Centers, provide superior screening, diagnosis, treatment and follow-up for breast cancer in Houston.

Use this section of our website to understand:

What are the Types of Breast Cancer?

Ductal Carcinomas

Many breast cancer tumors are ductal carcinomas, which start in the ducts that move milk from the breast to the nipple. Lobular carcinoma starts in the glands of the breast that produce milk. In rare cases, breast cancer occurs in other areas of the breast.

Estrogen Receptor (ER) Positive Breast Cancer

Many breast cancers have estrogen receptors on the surface of their cells, and as a result are sensitive to the hormone estrogen. They are called estrogen receptor-positive cancer or ER-positive cancer.

Progesterone Receptor (PR) Positive Breast Cancer

Other breast cancer cells have progesterone receptors on the surface of the cell making them sensitive to progesterone. These tumors are called PR-positive cancers

HER2-Positive Breast Cancer

Some women have HER2-positive breast cancer. HER2 is a gene that helps cells grow, divide and repair themselves. When cancer cells have too many copies of this gene, they grow faster.

Tumor cells can be any combination of ER/PR and HER2 positive or ER/PR and HER2 negative with excess of receptors on the cells surface.