ER-positive/HER2-negative Metastatic Breast Cancer at a Glance:
ER-positive/HER2-negative metastatic breast cancer is a specific type of breast cancer and has spread to other areas of the body (i.e., metastatic breast cancer). Breast cancer is the most common form of cancer diagnosed in women, and approximately 87% of all breast cancers are ER-positive/HER2-negative. ER-positive/HER2-negative breast cancer is the most common form of breast cancer, and luckily, has many different treatment options available for individuals diagnosed with this type of breast cancer.
Medically reviewed by Dr. Rani Bansal, M.D.
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ER-positive/HER2-negative (ER+/HER2-) metastatic breast cancer is a specific subtype of cancer that originates in the breast tissue that has spread, or metastasized, to other parts of the body. ER+/HER2- breast cancer is the most common, accounting for approximately 87% of all breast cancers, and some individuals diagnosed with this type of cancer will also be diagnosed with metastatic breast cancer depending on how much it has grown or spread. Understanding what type of breast cancer you have specifically is important to receiving the best treatment. To help you better understand ER+/HER2- metastatic breast cancer, we’ve created this condition guide. Before we get into the details of this condition, we’re going to take a step back and provide you with an overview of what the “ER+/HER2-” means in your