Fertility and Breast Cancer: Navigating Reproductive Health Options During Treatment
March 2, 2024
Introduction to Reproductive Health and Breast Cancer Being diagnosed with
Breast cancer is one of the most common types of cancer among women in the United States. With the prevalence of breast cancer, it is important to understand the different types and what they mean.
The most common types of breast cancer are:
HER2-positive breast cancer is the most common type of breast cancer, with about 20-25% of all breast cancer cases being HER2-positive. This type of cancer is caused by a gene mutation that causes the body to produce too many HER2 proteins, which can lead to the cancer cells growing and multiplying at a faster rate than normal.
ER-positive breast cancer is the second most common type of breast cancer, with about 70-75% of all breast cancer cases being ER-positive. This type of cancer is caused by a gene mutation that causes the body to produce too much of the hormone estrogen, which can lead to the cancer cells growing and multiplying at a faster rate than normal.
PR-positive breast cancer is the third most common type of breast cancer, with about 15-20% of all breast cancer cases being PR-positive. This type of cancer is caused by a gene mutation that causes the body to produce too much of the hormone progesterone, which can lead to the cancer cells growing and multiplying at a faster rate than normal.
Triple positive breast cancer, which is also known as “triple-positive” or “estrogen receptor-positive” breast cancer. This type of breast cancer is characterized by the presence of three proteins in the cancer cells: estrogen receptors (ER), progesterone receptors (PR), and human epidermal growth factor receptor 2 (HER2).
The less common types of breast cancer are:
HER2-negative breast cancer is the least common type of breast cancer, with about 5-10% of all breast cancer cases being HER2-negative. This type of cancer is caused by a gene mutation that causes the body to produce too little of the HER2 proteins, which can lead to the cancer cells growing and multiplying at a slower rate than normal.
ER-negative breast cancer is the second least common type of breast cancer, with about 25-30% of all breast cancer cases being ER-negative. This type of cancer is caused by a gene mutation that causes the body to produce too little of the hormone estrogen, which can lead to the cancer cells growing and multiplying at a slower rate than normal.
PR-negative breast cancer is the third least common type of breast cancer, with about 5-10% of all breast cancer cases being PR-negative. This type of cancer is caused by a gene mutation that causes the body to produce too little of the hormone progesterone, which can lead to the cancer cells growing and multiplying at a slower rate than normal.
Triple-negative breast cancer is the rarest type of breast cancer, with about 10-15% of all breast cancer cases being triple-negative. This type of cancer is caused by a gene mutation that causes the body to produce too little of the HER2 proteins, the hormone estrogen, and the hormone progesterone, which can lead to the cancer cells growing and multiplying at a slower rate than normal.
When arranging the different types of breast cancer from most common to least common, the order would be as follows:
• Breast cancer is one of the most common types of cancer among women in the United States.
• The most common types of breast cancer are HER2-positive, ER-positive, and PR-positive.
• The less common types of breast cancer are HER2-negative, ER-negative, PR-negative, and triple-negative.
• When arranging the different types of breast cancer from most common to least common, the order is HER2-positive, ER-positive, PR-positive, Triple-positive, HER2-negative, ER-negative, PR-negative, and Triple-negative.
• Understanding the different types of breast cancer is important in order to make informed decisions about treatment.
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