About this document "Sample Pathology Report - Breast Cancer": What is my hormone receptor status and what does it...

Your Hormone Receptor Status

Based on your pathology report, your breast cancer is hormone receptor-positive (HR+). Specifically:

• Estrogen Receptor (ER): Positive - 95% of your tumor cells show strong estrogen receptors
• Progesterone Receptor (PR): Positive - 80% of your tumor cells show moderate to strong progesterone receptors

What This Means

Your cancer cells have receptors (proteins on the cell surface) that bind to the hormones estrogen and progesterone. When these hormones attach to the receptors, they can signal the cancer cells to grow and multiply.

The good news is that HR+ cancers can be treated by blocking these hormone signals.

Treatment Implications

According to NCCN Guidelines, hormone receptor-positive breast cancer like yours is treated with endocrine therapy (also called hormone therapy). This treatment works by either:

1. Blocking estrogen receptor signaling - preventing estrogen from attaching to cancer cells
2. Decreasing estrogen production - reducing the amount of estrogen your body makes

The American Cancer Society notes that most breast cancers are HR+, and endocrine therapy is a standard, effective treatment approach for these cancers.

Your pathology report specifically mentions: "Recommend endocrine therapy consideration." This aligns with standard treatment guidelines for HR+ breast cancer.

Additional Context

Your report also notes you are HER2-negative, which means your treatment will focus on endocrine therapy rather than HER2-targeted drugs. The report suggests an Oncotype DX test may be helpful - this genomic test can help determine whether adding chemotherapy to endocrine therapy would provide additional benefit.

Next steps: Discuss specific endocrine therapy options with your oncologist, as there are several effective medications available for HR+ breast cancer.