Understanding ER-Negative Breast Cancer: What You Need to Know

It is estimated that one in eight women in the United States will be diagnosed with breast cancer in their lifetime. It is also the most common type of cancer in women. . Understanding the different types of breast cancer can help you better prepare for what to expect if you or someone you know is diagnosed. One of the types of breast cancer is known as ER-negative breast cancer.

What is ER-Negative Breast Cancer?

ER-negative breast cancer is a type of breast cancer that does not contain any estrogen receptors (ER). Estrogen receptors are proteins that are found in the cells of the body and are responsible for responding to the hormone estrogen. When these receptors are present, the cancer cells are able to use the hormone estrogen to fuel their growth. However, when these receptors are not present (ER-negative), the cancer cells cannot use estrogen to grow and spread.

What Are the Symptoms of ER-Negative Breast Cancer?

The symptoms of ER-negative breast cancer are similar to those of other types of breast cancer. These symptoms include:

• a lump or thickening in the breast or underarm area
• a change in the size or shape of the breast
• nipple discharge
• redness or scaling of the nipple or breast skin

It is important to note that these symptoms can also be caused by other conditions, so it is important to talk to your doctor if you are experiencing any of these symptoms.

How is ER-Negative Breast Cancer Diagnosed?

ER-negative breast cancer is typically diagnosed through a biopsy. During a biopsy, a small sample of tissue is taken from the breast area and examined for cancerous cells. The sample is then tested to determine if the cancer cells contain estrogen receptors. If the cells are ER-negative, this means that the cancer does not contain estrogen receptors and is classified as ER-negative breast cancer.

How is ER-Negative Breast Cancer Treated?

ER-negative breast cancer is typically treated with chemotherapy, radiation, or a combination of both. Surgery is also sometimes used to remove the tumor and any surrounding tissue. The type of treatment used will depend on the size and location of the tumor, as well as the stage of the cancer.

Summary

• ER-negative breast cancer is a type of breast cancer that does not contain any estrogen receptors.
• The symptoms of ER-negative breast cancer are similar to those of other types of breast cancer.
• ER-negative breast cancer is typically diagnosed through a biopsy.
• ER-negative breast cancer is typically treated with chemotherapy, radiation, or a combination of both.
• Surgery is sometimes used to remove the tumor and any surrounding tissue.