About Stage 1 Breast Cancer
Breast cancer is a type of cancer that occurs when the cells in a person's breast start growing uncontrollably.
The stage of breast cancer is based on the size and location of the primary tumor, the spread of cancer to nearby lymph nodes or other parts of the body, tumor grade, and the presence of biomarkers (receptors on the cancer cells).
Stage 1 breast cancer is the earliest stage of invasive breast cancer. Invasive means the breast cancer is spread to another area of the body. Stage 1, as the earliest invasive stage, means the cancer spread is nearby and limited to a small area. It is divided into two subcategories: Stage 1A and Stage 1B. Here is a breakdown of each subcategory:
- Stage 1A: In this stage, the tumor is no more than 2 centimeters in size and has not spread outside of the breast or to nearby lymph nodes. There may or may not be a detectable tumor in the breast.
- Stage 1B: In this stage, small groups of cancer cells are found in the lymph nodes under the arm. These cancer cells may be larger than 0.2 millimeters but smaller than 2 millimeters. There may or may not be a tumor present in the breast.
Treatment options for stage 1 breast cancer depend on various factors and should be discussed with a healthcare professional. It's important to note that doctors also consider other factors such as hormone receptor status (ER, PR) and HER2 status when determining treatment options.
The cause of breast cancer is genetic mutation in certain genes that affect the growth of cells in breast tissue. There are multiple factors that increase a person’s chances of developing breast cancer.
Non-modifiable risk factors of breast cancer are those that cannot be changed or controlled. These include:
- Age: Breast cancer risk increases with age
- Reproductive parameters: Start of menstrual periods before age 12, delayed menopause after age 55, or delayed childbearing (first full-term pregnancy after age 30)
- Genetics: Inherited changes in certain genes and family history of breast cancer
- Exposure to radiation
- High breast density
Modifiable risk factors are those that possibly can be changed or controlled through lifestyle or behavior choices. These include:
- Excess body weight or high body mass index (BMI)
- Low physical activity or sedentary lifestyle
- Excessive alcohol consumption
- Smoking, including second-hand smoking
- Unhealthy diets
- Hormone therapy and hormonal birth control: Certain types of hormone therapy and long-term use of hormonal birth control may increase the risk.
It's important to note that while these risk factors may increase the likelihood of developing breast cancer, they do not guarantee that someone will develop the disease. Regular screenings and early detection are crucial for identifying breast cancer at an early stage when treatment is most effective.
Many people with stage 1 breast cancer do not have symptoms. Symptoms that may occur in the early stages of breast cancer include:
- New lumps or masses in the breast
- Changes in skin texture or color
- Dimpling of the breast
- Swelling of the breast
- Breast or nipple pain
- Nipple discharge that is not breast milk
- Changes in the shape of the nipple
- Redness or rash on the breast
It's important to note that not all individuals will experience all of these symptoms, and some may not have any symptoms at all. Regular screenings and self-exams are crucial for early detection. If you notice any changes in your breast tissue, it's important to see a doctor as soon as possible to rule out cancer as a possible cause.
Breast cancer is first diagnosed, then the stage is determined.
To diagnose breast cancer, healthcare professionals use a combination of examinations, tests, and procedures:
- Breast examination: A healthcare professional will carefully examine the breasts and underarm area for any lumps, changes in texture, or other irregularities.
- Mammogram: This is a type of X-ray specifically designed for breast tissue. It creates detailed images that can detect any early signs of breast cancer, such as tumors or abnormalities.
- Ultrasound: Using sound waves, a handheld device called a sonogram creates images of the inside of the breast. This helps doctors differentiate between solid masses and fluid-filled cysts.
- MRI (magnetic resonance imaging): An MRI scan uses strong magnetic fields and radio waves to generate detailed images of the inside of the breast. It provides additional information about the extent and characteristics of any abnormalities.
- Biopsy: If initial tests indicate the presence of breast cancer or suspicious findings, a biopsy is performed. During a biopsy, a needle is used to obtain a small sample of breast tissue. The sample is examined under a microscope to see if cancer cells are present.
To determine the stage of breast cancer, additional tests and procedures may be performed to gather more information. This may include blood tests and additional imaging tests, such as CT (computed tomography), MRI, PET (positron emission tomography), or bone scans. Staging is based on:
- Tumor size
- Involvement of lymph nodes
- Spread (metastasis) of breast cancer to other parts of the body
To guide treatment, additional testing is performed to determine if the cancer cells
- Have receptors for estrogen or progesterone
- Have human epidermal growth factor receptor 2 (HER2) protein
Remember, these are general procedures and may vary depending on individual cases. It's important to consult with your healthcare professional for personalized advice.
The goals of treatment for stage 1 breast cancer are to remove the tumor, prevent recurrence, and improve overall survival. The treatment plan may include:
- Surgery: The primary treatment for Stage 1 Breast Cancer is surgery. This may involve a lumpectomy (removal of the tumor and a small margin of healthy tissue) or a mastectomy (removal of the entire breast). Surgery may also remove nearby lymph nodes.
- Radiation therapy: After surgery, radiation therapy may be recommended. This treatment uses high-energy radiation to kill any remaining cancer cells in the breast or nearby lymph nodes.
- Hormonal therapy: If the cancer is hormone receptor-positive, hormonal therapy may be prescribed. This treatment involves medications that block the action of hormones (like estrogen) that can fuel the growth of certain types of breast cancer.
- Targeted therapy: For HER2-positive breast cancer, targeted therapy drugs may be used. These drugs specifically target proteins or pathways involved in the growth and spread of cancer cells.
- Chemotherapy: In some cases, chemotherapy may be recommended after surgery. Chemotherapy uses drugs to kill cancer cells that may have spread beyond the breast. It can help reduce the risk of recurrence.
It's important to note that these treatment options are tailored to each individual's specific case and may vary. It's best to consult with a healthcare professional for personalized recommendations.
Medication dosing may be affected by many factors. Check with your health care professional about dosing for your individual situation. Side effects can occur. Check with your health care professional or read the information provided with your medication for additional side effect information.