Mesothelioma is almost always caused by exposure to asbestos. In contrast, lung cancer refers to a malignancy of the lung itself.
This section is not intended as a tool for self-diagnosis, nor is it intended to be a substitute for consulting with a doctor who specializes in the diagnosis and treatment of mesothelioma. This section is merely designed to help you learn about mesothelioma.
Pleural Mesothelioma:
Pleural mesothelioma, also known as mesothelioma of the pleura, is a tumor of the lining surrounding the lungs. The pleura is a thin tissue around the lungs and the inside of the chest. In order to protect the lungs, the pleura produces a small amount of fluid which helps cushion the lungs, making the lungs move more smoothly during breathing.
Benign (Non-Cancerous) pleural mesothelioma
Benign pleural mesothelioma is a non-cancerous tumor that has not spread to other organs of the body. If the tumor is large, it may squeeze the lung itself and cause shortness of breath and pain.Malignant Pleural Mesothelioma
Malignant Pleural mesothelioma is cancerous and can spread to other parts of the body. This rare form of cancer is found in the pleural sac lining of the lung. Exposure to asbestos is considered the primary cause of pleural mesothelioma.
Symptoms
Pleural mesothelioma may include shortness of breath, chest pain, back pain, pain in the rib cage, fluid build-up in the lung lining, hoarseness, coughing up blood, swelling of the face and arms, muscle weakness, paralysis and sensory loss.
Peritoneal Mesothelioma:
Peritoneal mesothelioma, also known as cancer of the peritoneum, is a cancer of the abdominal lining.
One way doctors diagnose peritoneal mesothelioma is by looking inside the abdominal cavity with an instrument called a peritoneoscope. In this procedure, a cut is made through the abdomen wall and the peritoneoscope is placed into the abdomen. This test, called a peritoneoscopy, is usually performed in the hospital.
Some patients develop excessive fluid in the abdomen. This is called an effusion or ascites. A doctor may take a sample of such fluid to diagnose peritoneal mesothelioma. Fluid in the abdomen might also be drained to relieve symptoms of peritoneal mesothelioma. The procedure for drawing out this fluid is called “paracentesis”.
For more information about the diagnosis of this disease, click here
Symptoms
The symptoms of this cancer may include stomach pain, weight loss, nausea, vomiting, hernia, fluid in the abdominal cavity or a mass in the abdomen.
Pericardial Mesothelioma:
Pericardial mesothelioma is also known as mesothelioma of the pericardium or cancer of the sac that holds the heart.
Your doctor may diagnose this cancer using a thoracoscope to perform a thoracoscopy, which might also involve opening up the chest cavity to remove the tumor.
Patients who develop excessive fluid around the heart, called an effusion, may have a sample of the fluid taken to diagnose pericardial mesothelioma. Fluid might also be drained to relieve symptoms of pericardial mesothelioma. The procedure for drawing out this fluid is called “pericardiocentesis.”
Symptoms
Symptoms can include chest pain and shortness of breath. The tumor and/or fluid that accumulates between the heart and the sac can compress the heart, causing such symptoms
Cell Types of Mesothelioma:
A patient’s doctor or medical records may refer to the “cell type” of the malignant mesothelioma. This refers to the type of tissue where the cancer first developed. For example, “epithelial” malignant mesothelioma refers to cancerous cells that develop in the “epithelium,” which is the membrane lining of the lung, heart, or abdomen. In contrast, “sarcomatous” malignant mesothelioma arises in connective tissue. “Biphasic” refers to malignant mesothelioma that arises in two different cell types. Other cell types of malignant mesothelioma are lymphohistiocytoid and desmoplastic.
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