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• A: Herceptin is a treatment for women with breast cancer whose tumors have too much HER2 protein. This type of cancer is known as “HER2-positive”, “HER2+”, or “HER2 overexpressing”. HER2+ tumors tend to grow and spread more quickly than tumors that are not HER2+. This is why it is so important to find out your cancer’s HER2 status.
