Mesothelioma of the Pleura: What You Need to Know
So you've been diagnosed with mesothelioma of the pleura. The first thing you're probably wondering is what exactly that means. Put simply, it's a type of cancer that affects the pleura, which is the lining surrounding your lungs. But don't panic - while it's a serious diagnosis, the good news is treatment options are available and research is ongoing.
In this article, we'll walk you through the basics of mesothelioma of the pleura so you know what to expect. We'll discuss the causes, symptoms to look out for, how it's diagnosed, and the latest treatment options recommended by oncologists and mesothelioma specialists. We want to arm you with the knowledge you need to make informed decisions about your care and find the right path forward.
You're not alone in this - over 3,000 new cases of mesothelioma are diagnosed in the U.S. each year. And while there is no cure yet, remission and life extension are possible with proactive treatment. So take a deep breath and read on. We'll get through this together, one step at a time.
What Is Mesothelioma of the Pleura?
Mesothelioma of the pleura, also known as malignant pleura mesothelioma, is a rare cancer that affects the lining of the lungs, known as the pleura. Basically, mesothelioma causes malignant cells to form in the pleura.
The pleura is a thin membrane that lines the lungs and the chest cavity. It's made up of two layers - the visceral pleura, which covers the lungs, and the parietal pleura, which lines the chest wall and diaphragm.
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Unfortunately, the most common cause of mesothelioma of the pleura is exposure to asbestos, a naturally occurring mineral that was once commonly used in construction and industrial applications. Asbestos exposure, especially long-term, heavy exposure, is the biggest risk factor for developing this disease. The fibers can get lodged in the pleura, causing inflammation and scarring over many years that may lead to mesothelioma.
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The symptoms of mesothelioma of the pleura typically include:
Chest pain - can feel like pressure, tightness or aching.
Shortness of breath - difficulty breathing caused by fluid buildup or tumor growth.
Coughing - may produce blood or fluid.
Fatigue and weight loss.
Swelling of the face, arms, and neck caused by fluid buildup.
If you experience these symptoms, see your doctor right away. An early diagnosis and prompt treatment offer the best chance for controlling mesothelioma.
Signs and Symptoms of Pleura Mesothelioma
If you've been diagnosed with mesothelioma of the pleura, the lining surrounding your lungs, you'll want to watch out for these common signs and symptoms.
Chest pain is one of the first indicators. You may feel an ache or sharp pain in your chest wall, shoulder, or upper abdomen that gets worse when you breathe deeply or cough.
Shortness of breath is another symptom to note. Do you find yourself struggling to catch your breath or feeling winded after light activity? This can occur as fluid builds up in the space between your lungs and chest wall or as tumors grow and press on your lungs.
Coughing and wheezing can also develop. You may cough up blood or have a dry, hacking cough that just won't go away. Wheezing or hoarseness can happen as your airways become obstructed.
Swelling in the face or arms can be a sign that fluid has built up in the space surrounding your lungs. You may notice puffiness or indentations in your skin, especially around the neck and chest.
Weight loss, fatigue, and loss of appetite are other common symptoms. As the cancer grows, it can sap your energy and affect your body's ability to maintain a healthy weight.
If you experience these symptoms, especially in combination, see your doctor right away for an accurate diagnosis and treatment. Early detection of pleura mesothelioma gives you the best chance of successful treatment.
Diagnosing Mesothelioma of the Pleura
Diagnosing mesothelioma of the pleura typically involves several tests to determine if you have the disease and what stage it may be in. Early diagnosis is critical to successful treatment.
Medical History
Your doctor will review your medical and exposure history to asbestos or other carcinogens that could have contributed to pleura mesothelioma development. Be prepared to discuss any occupational or environmental exposure you may have had, as well as your symptoms and when they began.
Imaging Tests
Chest x-rays, CT scans, MRI and PET scans are common imaging tests used to detect abnormalities in the pleura or chest cavity. These scans provide detailed pictures of the pleura and any changes in shape or thickness that could indicate mesothelioma or fluid buildup.
Biopsies
If imaging tests detect suspicious areas, your doctor will likely order a biopsy to extract tissue or fluid samples for testing. The most common biopsies for pleura mesothelioma include:
Needle biopsy: Using a long needle inserted through the chest wall to extract fluid or tissue samples. Often done with guidance from CT or ultrasound.
Thoracoscopy: A minimally invasive procedure using a small camera inserted through small incisions in the chest wall. Allows doctors to visually examine the pleura, take biopsies and assess if the cancer has spread.
Open biopsy: A more invasive surgical procedure done under general anesthesia to open the chest cavity and extract larger tissue samples. Only used if less invasive methods cannot obtain a definitive diagnosis.
The biopsy samples are examined under a microscope by a pathologist to determine if mesothelioma or another cancer is present. Immunohistochemistry testing helps confirm the diagnosis and determine the tumor type. These test results, combined with your medical history and imaging findings, provide the information needed to diagnose mesothelioma of the pleura and determine appropriate treatment options.
Treatment Options for Mesothelioma of the Pleura
Once pleural mesothelioma has been diagnosed, it’s time to explore treatment options. The course of treatment depends on factors like the stage of the cancer, your overall health, and your personal preferences. The main options include:
Surgery
The most common surgery for pleural mesothelioma is called pleurectomy/decortication, or P/D. It involves removing the lining around the lungs (the pleura) and any visible tumors. P/D can help relieve symptoms like chest pain and shortness of breath. For early stage pleural mesothelioma, P/D may be potentially curative when combined with other treatments like chemotherapy.
Chemotherapy
Chemotherapy uses anti-cancer drugs to destroy mesothelioma cells. For pleural mesothelioma, chemotherapy is often used after surgery to kill any remaining cells. It can also be used on its own to control tumor growth and minimize symptoms when surgery isn't an option. Several chemotherapy regimens are available using drugs like pemetrexed, cisplatin, carboplatin and gemcitabine.
Radiation Therapy
Radiation therapy directs high energy beams at the cancer cells to damage and kill them. For pleural mesothelioma, radiation is mainly used to shrink tumors, reduce pain, and control fluid buildup. It may also be used after surgery as an adjuvant treatment. Newer radiation techniques like intensity-modulated radiation therapy (IMRT) and volumetric-modulated arc therapy (VMAT) help target the radiation more precisely to minimize damage to healthy tissues.
Immunotherapy
Immunotherapy stimulates your own immune system to attack mesothelioma cells. The FDA has approved several immunotherapy drugs for pleural mesothelioma like pembrolizumab, nivolumab and ipilimumab. These checkpoint inhibitors release the brakes on the immune system, allowing T cells to target mesothelioma cells more effectively. Immunotherapy is often used when other treatments are no longer working.
In the end, the best approach uses a multimodal strategy that combines multiple treatment options for the most comprehensive care. Discussing the pros and cons of each choice with your doctor will help determine an optimal treatment plan based on your unique situation.
Mesothelioma Prognosis: What to Expect
Once diagnosed with mesothelioma of the pleura, you'll want to understand the prognosis and what to expect. The prognosis depends on several factors, including:
Stage of Mesothelioma
The earlier the stage, the better the prognosis. Stage 1 or 2 mesothelioma of the pleura has a better prognosis than stage 3 or 4. With treatment, early stage mesothelioma patients may live 3-5 years or more. Late stage mesothelioma typically has a poorer prognosis, around 4-18 months.
Cell Type
Epithelioid mesothelioma has the best prognosis. Biphasic or sarcomatoid cell types have a poorer prognosis. Epithelioid tumors tend to respond better to treatment.
Treatment Options
More aggressive treatment like extrapleural pneumonectomy (EPP) combined with chemotherapy or radiation therapy provide the best chance to extend life expectancy. Patients who opt out of treatment or receive palliative care alone typically have a prognosis of around 4-18 months. With treatment, some patients live 2-5 years or longer.
Age and Overall Health: Younger, otherwise healthy patients generally have a better prognosis. Older patients or those with other health conditions may not be able to tolerate more aggressive treatments.
The most important thing is to discuss your prognosis and options with your oncologist to determine the best course of treatment based on your unique situation. Don't lose hope - some patients outlive their prognosis significantly, especially with ongoing advancements in treatment. Stay positive, focus on living well, and make the most of each day. While the prognosis can provide a general sense of what to expect, every patient is different.
Conclusion
So there you have it, an overview of what mesothelioma of the pleura is and what you need to know. The key takeaways are that asbestos exposure is the primary cause, the symptoms can take decades to appear, and catching it early is critical. Talk to your doctor right away if you experience chest pain, shortness of breath, fatigue or unexplained weight loss. While a mesothelioma diagnosis is scary, many treatment options are available to potentially extend your life and improve quality of life. Staying on top of regular screening, maintaining a healthy lifestyle and connecting with a support group can help you stay in control. Knowledge is power, so keep learning and don't lose hope. Together we can beat this.
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