Metastatic Breast Cancer - Causes, Common Sites, Symptoms, Diagnosis, and Treatment

What Is Metastatic Breast Cancer?

Metastatic breast cancer refers to cancer cells that have spread to other areas of the body, like the liver, lungs, brain, or bones. It is also known as stage four breast cancer.

The primary issue is that these secondary tumors have the potential to affect the quality of life by interfering with the function of essential organs, resulting in severe pain, exhaustion, weight loss, and other severe complications.

So in such cases, a combination of treatments, such as supportive care, systemic treatments, and targeted therapies, will be helpful. Hormone therapy, immunotherapy, chemotherapy, and targeted medications are some of the treatments that help manage symptoms, stop tumor growth, and stop the spread of the disease.

To increase survival, lower complications, and improve the patient's overall quality of life, a team of healthcare professionals, such as oncologists, nurses, and supportive care specialists, is crucial; also, routine monitoring and follow-up are mandatory to stay on track.

What Are the Causes of Breast Cancer Metastasis?

• The causes of metastatic breast cancer are still unclear, but our doctors are trying to find ways to make us understand what causes them. It is difficult to point out a particular cause for the spread of cancer, but a few reasons, like the cancer treatment failing to kill all the cancer cells, the presence of cancer cells that escaped exposure, and cancer cells remaining dormant or inactive, are considered possible causes.

• These cancer cells have escaped treatment and live in the body in an inactive mode, and later become active due to a weak immune system. They then grow, get into the bloodstream, and spread to other body parts.

What Factors Increase the Risk of Developing Metastatic Breast Cancer?

• Old age.

• Family history of breast cancer.

• Post-menopausal women.

• Genetic mutations.

• Advanced cancer stage.

• Alcohol consumption.

• Obesity.

• Lack of physical activity.

• Early menstruation.

• Aging.

• Radiation exposure.

• Pregnancy.

What Are the Signs of Metastatic Breast Cancer?

Metastatic breast cancer symptoms vary greatly depending on the cancer's location, and each person will have different symptoms; however, indicators of metastatic breast cancer may include:

1. Chronic discomfort in the back, bones, or joints.

2. Difficulties urinating (either incontinence or the inability to void) can be an indication that the cancer is compressing nerves in your back.

3. Numbness or weakness throughout your body.

4. A persistent dry cough.

5. Shortness of breath or trouble breathing.

6. Chest discomfort.

7. Loss of appetite.

8. Stomach bloating, discomfort, or soreness.

9. Chronic nausea, vomiting, or weight loss.

10. Jaundice (a yellow hue on the skin and eyes).

11. Severe headaches.

12. Vision issues (blurred vision, double vision, loss of vision).

13. Seizures.

14. Loss of balance.

15. Confusion.

16. Constant tiredness.

How Does Metastatic Breast Cancer Spread?

The spread of metastatic breast cancer happens mainly through lymphatics and blood vessels. The first step is that.

1. The breast tumor breaks and spreads initially to the nearby lymph nodes. The common lymph nodes to which the cancer spreads are the lymph nodes in the breast, axillary lymph nodes (those present in the underarms), and the lymph nodes near the collarbone.

2. Then it enters the lymphatic system, travels to other body parts, and spreads to other organs. After reaching those organs, it begins to develop into a new cancer.

What Are the Most Common Sites of Breast Cancer Metastasis?

The common sites of breast cancer metastasis include the liver, lungs, bones, and brain. It can spread to multiple organs at the same time as well. Likewise, symptoms will also vary depending on the organ to which the cancer has metastasized or spread.

If someone you know has organ metastasis, they would have the following symptoms:

• Vomiting.

• Fatigue.

• Sudden and drastic unexplained weight loss.

• Numb feeling.

• Change in appetite.

If the breast tumor metastases to the brain, the affected person may notice the following symptoms:

• Headaches.

• The feeling of heaviness.

• Vision changes.

• Vomiting.

• Seizures, along with other neurological problems.

If the metastasis is to the bone, symptoms include:

• Pain in bones.

• Pain in the joints and swelling along the bone can occur; also, the bone becomes brittle and can break easily.

In lung metastasis, multiple respiratory symptoms, such as:

• Breathing difficulty.

• Chest pain.

• Continuous nonhealing cough and feeling of a block when breathing develop.

And if the affected person has liver metastasis, they will notice symptoms like:

• Jaundice.

• Symptoms in the stomach, like discomfort, pain, digestive issues, etc.

• Skin rashes.

How Is Metastatic Breast Cancer Diagnosed?

We understand that going through all the symptoms can be scary and painful. But it is essential to rule out the proper cause so you can plan for a targeted treatment for stage 4 breast cancer with your treating doctor. The initial tests to rule out any cancer include;

• A complete blood test.

• A mammogram, a special X-ray to detect abnormalities in the breasts.

• Ultrasound of the breast, where high-frequency sound waves are used in this imaging method to analyze the breasts to check or confirm abnormal breast changes.

Based on the affected organs, the diagnostic techniques are customized.

• A bone scan to rule out the bones to which cancer has spread.

• MRI (magnetic resonance imaging) of the brain and spine.

• A CT (computed tomography) scan is done to investigate the chest, stomach, brain, and other suspected organs.

• Biopsy (a small piece of tissue is taken and sent to the laboratory to study the type of cancer, the site of onset, assess if it is cancerous in nature, and the rate of spread of the cancer cells).

• A positron emission tomography (PET) scan is a technique that uses radioactive substances to rule out cancer spread.

• Bronchoscopy (a medical procedure to examine the airways and lungs) is advised in patients suffering from respiratory symptoms like a continuous cough.

Who Is Susceptible to Metastatic Breast Cancer?

The bitter truth is that metastatic breast cancer can affect anyone, but a few factors increase the risk more.

• People who are diagnosed with breast cancer are often diagnosed in the later stages.

• Nature and rate of spread of the cancer cells (some are slow-spreading, whereas others are fast-spread) also play a role. If the cancer type is aggressive, then the chances are really high.

• Certain genetic factors, age, and hormone level fluctuations also increase the susceptibility.

• Also, family history, if someone in your family had breast cancer, there is a chance you can get it too.

• Availability of treatment - If the initiation of treatment is delayed or proper treatment is not sought.

What Is the Treatment for Metastatic Breast Cancer?

Though this is sad to hear, there is no permanent cure for breast cancer that has metastasized. However, there are treatment choices available to minimize and slow down the spread, but the permanent destruction of the cancer cells can be challenging.

So your doctor will decide the treatment based on the organs affected, your previous treatment, and the nature of the cancer cells.

This is the list of treatment options doctors generally opt for in metastatic cancer.

• Chemotherapy - This treatment option uses chemicals or anti-cancer drugs to kill the fast-growing cells in the body.

• Immunotherapy - This treatment method activates or suppresses the immune system to fight against infections in the body.

• Hormone Therapy - This treatment for cancer stops the growth of cancers that use hormones to grow and spread.

• Targeted Drugs - The cancer treatment uses anti-cancer drugs to target specific proteins and genes.

• Radiotherapy - The cancer treatment that uses intense energy radiation to kill fast-growing cancer cells.

In some cases, your doctor may combine any of the above treatments based on your health condition and demands. Apart from receiving cancer treatment, you or someone you know who has breast cancer also needs to follow the points mentioned below to handle invasive cancer in a better way.

• They must follow a healthy lifestyle by eating a balanced and nutritious diet, possibly guided by a nutritionist, and engaging in any form of physical activity regularly.

• Manage stress by seeking help from close ones or professionals.

Conclusion

Metastatic, or stage four, breast cancer is a rather challenging diagnosis because it requires continuous treatment and emotional toughness. It is when cancer cells from the breast spread to other organs of the body, introducing very complex symptoms and complications. Although early diagnosis, personalized treatment, and symptomatic care make an improvement in quality of life and survival rates, a complete cure is yet to be possible. With symptom management improving and a multidisciplinary approach to diseases, patients today have a better chance of living longer, fuller lives. Here at iCliniq, our oncologist consultation can help explain the treatment for stage 4 breast cancer and guide you toward better health with simple steps.

Key Takeaways:

• Metastatic breast cancer refers to the advanced stage where cancer spreads from the breast to other parts of the body, such as the bones, lungs, liver, or even the brain.

• Although not fully preventable or reversible, the metastasis can be controlled with treatments like hormone therapy, chemotherapy, targeted therapy, and immunotherapy. These not only help relieve symptoms but also improve the quality of life.

• Consult an Oncologist if you have persistent symptoms such as unexplained fatigue, weight loss, bone pain, or difficulty breathing, or if you require timely treatment and individualized attention.