Metastatic breast cancer occurs when cancer cells spread from the breast to other organs in the body, a condition also known as stage 4 breast cancer.
What is Metastatic Breast Cancer?
This condition begins when breast cells grow uncontrollably, and some of these cells detach and travel through the blood or lymphatic system to settle in new locations. Common sites for the spread of this type of cancer include the liver, lungs, brain, and bones.
Some patients may be diagnosed with this at the time of initial discovery, but more commonly, it appears as a recurrence of breast cancer after a period of previous treatment. Although advanced cases that have reached other organs are usually not curable, modern treatments help control the metastatic disease, prolong life, and improve its quality.
Symptoms of Metastatic Breast Cancer
There may be no signs initially, and when they appear, they depend on the organ the disease has reached:
- General symptoms: These include loss of appetite, unexplained weight loss, extreme fatigue, body aches, shortness of breath, and swollen lymph nodes.
- Spread to the bones: Often appearing in the spine, this may cause bone pain, weakness in a part of the body, numbness, sudden fractures, or loss of bladder and bowel control.
- Spread to the brain: This can lead to new or increasing headaches, vision changes, seizures, nausea and vomiting, and balance disorders.
- Spread to the lungs: This causes coughing, chest pain, shortness of breath, and may lead to fluid accumulation around the lung.
- Spread to the liver: This manifests as yellowing of the skin and whites of the eyes (jaundice), abdominal swelling, and pain in the upper right side of the abdomen.
Risk Factors and Causes
There is no single, clear cause, but there are factors that increase the likelihood of developing breast cancer in general, including:
- Health history: A previous occurrence in one breast, a family history of the disease, or genetic mutations in genes such as BRCA1 and BRCA2.
- Age and hormones: Risks increase with age, starting menstruation before age 12, reaching menopause after 55, or having the first child after age 35.
- Lifestyle: Obesity, alcohol consumption, and having dense breast tissue.
- Other factors: Exposure to radiation in the chest area at a young age.
Diagnosis and Treatment of Metastatic Cancer
Diagnosis is conducted via clinical examination, blood tests (such as complete blood count and liver function tests), and imaging tests like X-rays, MRI, and bone scans. A biopsy is also performed to analyze the cells and determine the status of hormone receptors (HR) and the HER2 protein to identify the appropriate treatment.
Treatment options for this metastatic carcinoma vary and include:
- Drug therapies: Such as hormonal therapy (estrogen blockers), chemotherapy, targeted therapy, and immunotherapy.
- Local interventions: Radiation therapy or surgery may be used to alleviate symptoms resulting from the spread of the disease in the brain, bones, or liver.
- Bone support medications: To reduce the risk of fractures and relieve pain.
- Palliative care: Aimed at improving quality of life and controlling pain alongside other treatments.
FAQ
When should I visit a doctor?
You should schedule an appointment with a specialist if any concerning symptoms appear, especially for those with a previous history of breast cancer.
Can stage 4 breast cancer be cured?
Usually, a complete cure is not possible, but treatments aim to control the disease and slow its growth.
How is the type of treatment chosen?
The choice depends on the characteristics of the cancer cells (such as HER2 and HR status), the location of the spread, and the patient’s health goals.
When to seek immediate medical care?
Contact a doctor immediately if you notice:
- A sudden, severe headache or seizures.
- Severe difficulty breathing or sharp chest pains.
- Bone fractures without a clear injury.
- A sudden change in vision or loss of balance.
Disclaimer: This content is for informational purposes only and does not replace professional medical advice.
Related articles
- Effects of Breast Cancer on the Body: Symptoms and Treatment
- Understanding Invasive Lobular Carcinoma: Guide & Symptoms
- Understanding Lobular Carcinoma in Situ (LCIS)
- Is Leukemia Hereditary? Genetic and Environmental Risks
- More about Breast Cancer
Photo: MTAPhotos, BY 2.0, via flickr.com
approved by: Medica Health team