Mesothelioma: How Do Doctors Diagnose Asbestos Cancer?

How do doctors diagnose the mesothelioma?

When you see your doctor, the first think he does to suspect the mesothelioma is asking about your occupational history. The paramount importance is to catch the asbestos cancer in the early stages of the disease, so time is of the essence. The survival rate is eight to twelve months on average. However, catching and treating the mesothelioma early at some cancer centers gives better results. Doctors look for signs and symptoms of the cancer. The mesothelioma symptoms often delay up to 20 and more years after asbestos exposure. Yet, in rats intra-pleural introduction of asbestos chrysotile fibers may cause mesothelioma in several months.

People with mesothelioma complain on breath shortness, persistent cough, sputum, and chest pain. The pain comes from pleura - the lungs lining that is very sensitive to irritation. Mesothelioma tends to cause fluid accumulation in the pleural cavity.
Peritoneal mesothelioma causes weight loss, pain and ascites (belly swelling due to fluid in the abdominal cavity). Peritoneal mesothelioma also may block bowels and cause all kinds of troubles with gut obstruction. As many cancers, asbestos cancer also changes blood clotting, causes blood cells decrease (anemia), night sweats, and fevers. Ascites may lead to nausea and feet swelling. Spreading of the cancer will bring pain, difficult swallowing, and neck swelling. This symptom happens because of compression of some great veins going to the heart in your chest. In general mesothelioma symptoms are not very specific. They may characterize any other type of cancer as well as many other non-cancerous diseases. This problem delays diagnosis. Sometimes patients think that they have viral pneumonia. Some patients don't have any symptoms at all. Mesothelioma in advanced stage, as well as majority of cancers, will cause fatigue.

An x-ray may show a fluid accumulation.
What is a pleural effusion? Pleural effusion means the accumulation of fluid between the pleura on inside chest wall and diaphragm and pleura covering lungs. What is pleura? Pleura is the thin layer of special cells covering the lung and inside of the chest wall. It has an idea of closed plastic bag with some small amount of fluid inside. Basically, this bag helps lungs to slide easily against chest wall during expansion from breathing. The membranes of pleura consist from mesothelial cells. Exactly these cells produce a small amount of the lubricant. The amount of fluid is always in balance. Extra pleural fluid is quickly reabsorbed. When there is too much fluid, it is the effusion. Abdominal cavity has similar lining named peritoneum, which covers abdominal organs the way pleura covers the lungs. Mesothelioma leads to fluid build up, which is caused by cancer cells irritating the pleura or peritoneum. This fluid leads to sickness in your abdomen or difficulty breathing.

Transudation is a pleural effusion with clear fluid. It usually results from imbalance of fluid production and removal. It is more characteristic for some other disease. Doctors would think first about congestive heart failure. Mesothelioma would rather cause an exudate. Exudates are a cloudy pleural effusion with many cells and proteins. Exudates happen after the pleura is irritated and inflamed, as it happen in mesothelioma. To check the type of effusion, doctors would stick a needle and get the fluid sample. This stick is called diagnostic thoracentesis. The fluid will be checked in the lab. If mesothelioma is the cause, cancer cells may be found in the fluid Why shortness of breath develops? The dyspnea (breath shortness) happens exactly because too much fluid is accumulated and press on the lung, pushing it away form the chest wall inside and thus making the lung smaller. Also the pain from inflamed pleura prevents patient from deep breathing. The receptors in inflamed pleura also cause dry cough. Listening to the lungs with a stethoscope reveals decreased breath sounds. Tapping on the chest sounds dull. This all is the consequence of fluid accumulation.

During your doctor's visit, you should discuss your concerns about asbestos exposure in the past. Your doctor should check the area of pain and swelling; he also should listen to your breath sounds and check for fluid collection. If your doctors suspect the effusion he may send you for tests and X-rays or refer to a specialist.
If a doctor suspects mesothelioma, he dose not have many specific tests on hands. Many of the usual tests may show no results in mesothelioma. Simple chest x-ray does not always show small pleural effusion. A lateral decubitus film may be required for smaller effusions (the same x-ray but the side view). Otherwise CT scan or ultrasound may show the effusion.
Aleksandr Kavokin, MD, PhD. Medical Articles http://www.kavokin.com, Free On-line diagnostics at http://www.symptomat.com, http://www.rdoctor.com

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Mesothelioma Overview

Mesothelioma is a rare form of cancer, but the deadliest one of all. It strikes about 3000 hard working people in the United States each year, mostly men over 40 years of age. It is caused by direct asbestos exposure, or from asbestos dust brought home on the worker's clothing.
During the twentieth century, around 30 million tons of asbestos were used in industrial sites, homes, schools, shipyards and commercial buildings in the United States. Many asbestos-containing products remain in buildings, ships, industrial facilities and other environments where the fibers can become airborne.

Mesothelioma is a cancer of the cells that make up the lining of the lungs, the inside of the ribs, and around the abdominal organs. In the past it was thought that cigarette smoking caused mesothelioma. However, with medical research it has been proven that it is caused by asbestos exposures.

Here's what the asbestos does. When a person breathes in asbestos fibers, the fibers then travel to the ends of the small air passages reaching the lining of the lungs and damaging the mesothelial cells (the lining of the lung cells). If swallowed, these fibers can reach the lining of the abdominal cavity where they play a part in causing a cancer called peritoneal mesothelioma. The chance of ever getting mesothelioma rises with the intensity and duration of your exposure to asbestos.

And you may not get mesothelioma right away. Mesothelioma can even develop 20 to 50 years after the initial exposure. The average life span of an inflicted person from the time of diagnosis with mesothelioma until death is less the 6 months. So, who's at risk?
People who work or used to work in asbestos environment, and spouses or children being exposed to asbestos fibers from work clothing brought home. Also, if you live in a house that was built in the mid 70's or before, you have to know that most insulation materials, including pipe insulation; boiler insulation; fireproofing spray; firebrick and gunnite (used for internal insulation of furnaces and boilers); also many construction materials, such as roof, floor and ceiling tiles contained asbestos. You too might be exposed to asbestos. You need to have your house checked for any asbestos presence.

If you have ever been exposed to asbestos directly or indirectly, early symptoms of mesothelioma can include shortness of breath and/or pain in the lower back or at the side of your chest. Less often, you can experience trouble swallowing, cough, fever, sweating, fatigue, and weight loss. So, these early symptoms sometimes may delay your diagnosis as these symptoms are also related to other illnesses. It will be up to you to mention to your doctor the possibility of asbestos exposure, because your doctor may not suspect it right away. Your doctor then, has to use x-rays, CT scans or a breathing test to detect the presence of asbestos. He or she can further perform a biopsy (taking samples of your lung tissue) to confirm it.
If you have been diagnosed with mesothelioma, you were most likely exposed to asbestos. Many asbestos manufacturers and even distributors knew for decades that asbestos was hazardous, yet they did not warn people of those hazards. As a result, you have a right of recovery against those manufacturers, which on the other hand can help pay the costs of treatment and provide compensation for your pain and suffering.

The first thing you need to do after being diagnosed with mesothelioma is contact a lawyer immediately to see if you have a case. Think about the source of your exposure, regardless of how long ago that might have been. Try to find the responsible parties. Whether that was your spouse's work, your work, your parents' work, the house you lived in, or anything at all that might have exposed you to asbestos.
Also, you need to ask your lawyer about your statute of limitations. Even if your family member has died from mesothelioma, you may still be eligible to file a claim. Even if you've never worked at a place that directly dealt with asbestos but you have gotten it through asbestos fibers brought home on clothes worn by a spouse or parent who worked in an asbestos environment, you may still be eligible to file a claim.
If diagnosed with mesothelioma, your doctor can only do so much to save your life. It will be mostly you religiously following the health directions given to you by your doctor and educating yourself about mesothelioma. Your doctor can help you save your life, but you can also help him or her help you by knowing how to deal with it.
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Mesothelioma What is it? 2

Mesothelioma can either be malignant (cancerous) or benign (non-cancerous) in nature. Mesothelioma affects the mesothelium, hence mesothelioma. What is the mesothelium?
The mesothelium is a type of tissue lined with special cells referred to as mesothelial cells. The mesothelial cells typically line the abdominal cavity, heart cavity, chest cavity, and the outer surface of most internal organs. Each cavity has a specific name for the mesothelial covered cavity which is: Peritoneum: abdominal cavity Pleura: chest cavity Pericardium: heart cavity

The mesothelium has a specific purpose in the body. The mesothelium produces a lubricating fluid that allows easy movement of the organs. The pleural mesothelium for example, allows the lungs to move easily with each breath that is taken. Without this, breathing would be a difficult and possibly painful process. Many refer to malignant mesothelioma as simply, mesothelioma. There are three main types of malignant mesothelioma ranked from less likely to more commonly seen: Sarcomatoid Mixed/Biphasic
Epithelioid Malignant mesothelioma more commonly begins in the chest cavity (pleural mesothelioma). Approximately 10-20% of the cases of malignant mesothelioma will begin in the abdominal cavity (peritoneal mesothelioma). Malignant mesothelioma rarely begins in the cavity surrounding the heart (pericardial mesothelioma).
Malignant Mesothelioma Statistics:

Mesothelioma is a very rare cancer estimated to affect 2,000-3,000 newly diagnosed cases annually in the U.S. The United States reported an increased rate of mesothelioma from 1970 to 1990, which has currently stabilized and possibly decreased. However, European countries continue to see an increase in the rate of mesothelioma.

Mesothelioma is commonly seen in the ages 65 years and older but increases with age. Mesothelioma is 5 times more likely to affect men than women. Mesothelioma is more common in the Caucasian nationality than African American.
Mesothelioma is a very serious cancer. Symptoms commonly do not appear early which causes mesothelioma to be diagnosed at an advanced stage. For this reason, mesothelioma has a low survival rate that is about 1-2 years. However, cancer research is slowly changing this statistic. Learn more about what risk factors predispose you to mesothelioma.
Kristy is a mother and experienced nurse. She has a Bachelor in Biology and Chemistry and writes to inform individuals interested in health information.

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Mesothelioma What is it? 1

Mesothelioma is a form of cancer that is almost always caused by exposure to asbestos. In this disease, malignant cells develop in the mesothelium, a protective lining that covers most of the body's internal organs. Its most common site is the pleura (outer lining of the lungs and internal chest wall), but it may also occur in the peritoneum (the lining of the abdominal cavity), the heart, the pericardium (a sac that surrounds the heart) or tunica vaginalis.

Most people who develop mesothelioma have worked on jobs where they inhaled asbestos particles, or they have been exposed to asbestos dust and fiber in other ways. It has also been suggested that washing the clothes of a family member who worked with asbestos can put a person at risk for developing mesothelioma. Unlike lung cancer, there is no association between mesothelioma and smoking, but smoking greatly increases risk of other asbestos-induced cancer. Compensation via asbestos funds or lawsuits is an important issue in mesothelioma (see asbestos and the law).

The symptoms of mesothelioma include shortness of breath due to pleural effusion (fluid between the lung and the chest wall) or chest wall pain, and general symptoms such as weight loss. The diagnosis may be suspected with chest X-ray and CT scan, and is confirmed with a biopsy (tissue sample) and microscopic examination. A thoracoscopy (inserting a tube with a camera into the chest) can be used to take biopsies. It allows the introduction of substances such as talc to obliterate the pleural space (called pleurodesis), which prevents more fluid from accumulating and pressing on the lung. Despite treatment with chemotherapy, radiation therapy or sometimes surgery, the disease carries a poor prognosis. Research about screening tests for the early detection of mesothelioma is ongoing.

Culled From Wikipedia, the free encyclopedia