About Metastatic Breast Cancer

Overview

Metastatic breast cancer, also known as stage 4 breast cancer, is an advanced stage of breast cancer that has spread from the breast tissue to other parts of the body. The most common sites breast cancer cells may spread to are the lungs, liver, bones, and brain. Metastatic breast cancer is considered a serious condition and may have a lower survival rate compared to earlier stages of breast cancer. Treatment options may include radiation therapy, chemotherapy, targeted therapies, and in some cases, surgery. These treatments aim to manage symptoms and improve quality of life for individuals with this condition. It is important to work closely with a healthcare professional to determine the most appropriate treatment plan for individual circumstances.

Causes and Risk Factors

Metastatic breast cancer occurs when cancer cells from the breast spread to other parts of the body. The causes of metastatic breast cancer include:

• Accumulation of molecular changes: Surviving tumor cells continue to change, allowing them to adapt to the body's defences and spread to other organs.

Non-modifiable risk factors are risk factors that cannot be changed. Non-modifiable risk factors for metastatic breast cancer include:

• Aging: The risk of breast cancer, including metastatic disease, increases with age.
• Genetics: Inherited changes in certain genes, such as BRCA1 and BRCA2, can increase the risk of developing breast cancer and potentially spreading.
• Family history of breast cancer

Modifiable risk factors are risk factors that can be changed or influenced. Modifiable risk factors for metastatic breast cancer include:

• Lifestyle factors: These include maintaining a healthy weight, engaging in regular physical activity, avoiding excessive alcohol consumption, and not smoking.
• Hormone-related factors: Some hormone-related factors, such as hormonal contraceptive use or hormone replacement therapy, may increase the risk of developing metastatic breast cancer. However, it's important to note that the relationship between hormones and breast cancer is complex and varies depending on individual circumstances.

It's crucial to consult with a healthcare professional for personalized advice regarding modifiable risk factors and appropriate management strategies.

Symptoms

Symptoms of metastatic breast cancer include:

• Back, bone, or joint pain that does not go away
• Incontinence or being unable to pee
• Numbness or weakness anywhere in the body
• Constant dry cough
• Shortness of breath or difficulty breathing
• Chest pain
• Loss of appetite

Additional symptoms with progression may include:

• Abdominal bloating, pain, or tenderness
• Constant nausea or vomiting
• Weight loss
• Jaundice (yellow tinge to the skin and whites of the eyes)
• Severe headaches
• Vision problems (blurry vision, double vision, loss of vision)
• Seizures
• Loss of balance
• Confusion

It's important to note that having these symptoms does not automatically mean a person has metastatic breast cancer. However, anyone experiencing these symptoms should see a doctor for evaluation. Early diagnosis and treatment can lead to better outcomes.

Diagnosis

To diagnose metastatic breast cancer, the following examinations, tests, and procedures are commonly performed:

• Physical exam: A healthcare professional will conduct a physical examination to check for any physical signs or symptoms of breast cancer.
• Blood work: Blood tests may be done to assess certain markers that can indicate the presence of cancer cells, such as calcium or alkaline phosphatase levels.
• Imaging tests: Various imaging tests may be used to provide a detailed view of the breast and surrounding areas. These may include mammograms, ultrasounds, CT, PET and MRI scans.

To determine the stage or severity of Metastatic Breast Cancer, additional examinations, tests, and procedures may be performed:

• Biopsy: A tissue sample is taken from the affected area and examined under a microscope to confirm the presence of cancer cells.
• Lymph node evaluation: Ultrasound examination and biopsy of regional lymph nodes may be done to determine if cancer has spread.
• Targeted diagnostic tests: Depending on the suspected sites of metastasis, specific diagnostic tests may be conducted on organs commonly affected by metastatic breast cancer, such as the brain, lungs, liver, and bones.

Remember that these are general descriptions and individual cases may vary. It's important to consult with your healthcare professional for personalized advice and guidance regarding diagnosis and staging.

Treatment Options

The goals of treating metastatic breast cancer are to manage the disease, improve symptoms, and prolong life. The primary treatments for metastatic breast cancer include:

• Hormone therapy: This treatment is used for hormone receptor-positive breast cancer. It works by blocking the effects of hormones, which can fuel the growth of cancer cells.
• Chemotherapy: Chemotherapy is effective in killing cancer cells throughout the body. It can help shrink tumors and prevent new ones from forming.
• Targeted drugs: Targeted therapies specifically target certain molecules involved in cancer growth.
• Immunotherapy: Immunotherapy helps the immune system recognize and attack cancer cells.
• Surgery
• Radiation therapy: This treatment uses high-energy beams to target and destroy cancer cells in specific areas.
• Bone-modifying therapy: For patients with bone metastases, medications can help strengthen bones and reduce the risk of fractures.

It's important to note that treatment plans may vary depending on individual factors and it may be necessary to discuss specific medication dosage and potential side effects. Consult with a healthcare professional to determine the most appropriate treatment approach for metastatic breast cancer.