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A layer of specialized cells coats the inside of your chest, abdomen, and the space around your heart, as well as the outer surface of most of your internal organs. These cells form a lining known as the mesothelium. The mesothelium helps protect your organs by creating a special lubricating fluid that reduces friction when organs move against each other.
The lining has different names depending on where it is in the body: it is called pleura when it lines the lungs; peritoneum when it lines the abdominal cavity and covers the abdominal organs; pericardium when it coats the heart; and tunica vaginalis when it covers the testicles.
If the cells start to grow out of control, they can form tumors. Tumors can start in any of these linings. Cancer that starts in these linings is called mesothelioma.
Each of the four main types of mesothelioma is named for where it starts in the body.
Pleural mesothelioma — cancer of the lining of the lungs.
Peritoneal mesothelioma — cancer of the lining of the abdominal cavity.
Pericardial mesothelioma — cancer of the covering around the heart.
Testicular mesothelioma — cancer of the covering of the testicles.(1)
Main Cause of All Mesothelioma Types
Mesothelioma is caused by asbestos exposure, usually in the workplace. Many of our mesothelioma clients worked around asbestos dust and inhaled asbestos fibers.
If you have been diagnosed with any form of mesothelioma, you should reflect on your work background to see if there is a connection to when you worked with or around asbestos-containing products and equipment. If you can fairly trace your mesothelioma to a company’s asbestos products, then you may be able to receive compensation through filing a mesothelioma claim.
Our dedicated attorneys at Weitz & Luxenberg have an extensive knowledge of worksites across the U.S. as they have handled more than 33,000 asbestos cases. We investigate each case, pinpointing where people inhaled asbestos, what products released the asbestos fibers, and what company needs to be held accountable.
About Types of Mesothelioma
All types of mesothelioma are aggressive, incurable cancers. Doctors diagnose 3,000 new cases in the U.S. each year, many of which can be traced to job-related asbestos exposure.(2) (3) The risk of developing mesothelioma remains long after exposure to asbestos stops. In fact, signs and symptoms of the disease typically do not appear until one to five decades or more after first asbestos exposure.(4)
When symptoms do emerge, people may mistake the signs of mesothelioma for common conditions.
When symptoms do emerge, people may mistake the signs of mesothelioma for common conditions.(5) As a result, by the time a pathologist can make a definitive diagnosis, the disease is often in an advanced stage. Treatment options today aim to help relieve symptoms of the disease, which vary based on mesothelioma type.
Pleural Mesothelioma (Lungs)
Pleural mesothelioma accounts for about three out of four — or 75% — of mesothelioma diagnoses, making it the most common type of the disease. This type of mesothelioma starts in the chest.(6)
When a person breathes in asbestos fibers, the fibers become lodged deep in the lungs and collect near the lining of the lungs, irritating the lining and causing inflammation.
The fibers can trigger cells to grow uncontrollably to form tumors. Pleural mesothelioma can cause fluid to build up around the lungs, among other serious complications.(7)
Symptoms of Pleural Mesothelioma
People with pleural mesothelioma may not experience or notice symptoms until this type of cancer has progressed.
Symptoms of pleural mesothelioma include:
Pain in the side of the chest or lower back.
Shortness of breath.
Unintended weight loss.
Swelling of the face and arms.(8)
Peritoneal Mesothelioma (Abdomen)
Sometimes people who inhale asbestos will cough up and swallow asbestos fibers. Inhaled fibers are also capable of migrating to the abdominal cavity. In these cases, a person may develop peritoneal mesothelioma, which forms on the lining of the abdominal cavity.(9)
Peritoneal mesothelioma represents about 10% to 15% of all mesothelioma diagnoses and is the second most common type of the disease.(10)
Symptoms of Peritoneal Mesothelioma
Symptoms of peritoneal mesothelioma range from abdominal pain to small bowel obstruction, which usually indicates that the cancer is in an advanced stage.(11)
Symptoms of peritoneal mesothelioma include:
Swelling or fluid in the abdomen.
Unintended weight loss.
Nausea and vomiting.
Pericardial Mesothelioma (Heart)
Pericardial mesothelioma is the most difficult form of mesothelioma to diagnose. It develops in the covering around the heart, known as the pericardium, and is a very rare form of the disease. Pericardial mesothelioma accounts for less than 5% of all mesothelioma cases.(13) (14)
Symptoms of Pericardial Mesothelioma
Warning signs of pericardial mesothelioma can be similar to those of other heart conditions.
Symptoms of pericardial mesothelioma include:
Heart palpitations or irregular heartbeat.
Testicular mesothelioma is difficult to diagnose because it is especially rare.(16)
This cancer develops in the membrane that lines the testes. It accounts for less than 1% of all mesothelioma diagnoses and only about 250 cases have been reported.(17)
With so few cases of this type of cancer, researchers have not definitively linked it to specific symptoms. Some people with the disease have reported swelling and/or fluid in one or both testicles.(18)
Mesothelioma Cell Types
Another way doctors may describe mesothelioma is by cell type or how the cancer cells are arranged.
There are three main mesothelioma cell types:
Epithelial — accounts for about half of mesotheliomas.
Sarcomatoid (fibrous) — accounts for about 10% of mesotheliomas.
Biphasic (has both epithelioid and sarcomatoid areas) — accounts for about 30% to 40% of mesotheliomas.(19)
Weitz & Luxenberg is a nationally recognized leader in asbestos litigation. For more than three decades, our attorneys have helped mesothelioma victims and their loved ones obtain the compensation they deserve.
We have the resources and experience necessary to hold asbestos companies accountable for neglecting to protect the health and safety of their employees and end-users of their products.
For a free legal consultation, please call (833) 544-0604 or fill out a form to speak with one of our dedicated mesothelioma lawyers.