Understanding er pr

If er positive and her2 positive is that the same as er pr and her2 positive. I can’t find any info for the former only the latter

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Hi Linz1314,

Thanks for posting.

ER (oestrogen receptor), PR (progesterone receptor) are hormone receptors and HER2 (Human Epidermal growth factor Receptor 2) is a protein found in breast cancer cells.

Invasive breast cancers are tested to see if they are ER positive, PR positive and HER2 positive using tissue from a biopsy or after surgery. The results from this help your treatment team decide the best options to treat someone’s individual type of breast cancer.

ER positive and HER2 positive would usually be offered the same treatment options as ER, PR and HER2 positive. You don’t say what your progesterone receptors (PR) are. If negative the treatment would be the same if the other receptors are positive.

You may find this information around understanding your pathology results helpful

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