Asbestos exposure is the single known cause of mesothelioma. Inhaled or ingested asbestos fibers can generate an inflammation of internal tissue and disrupt organ function which leads to the development of mesothelioma.
Asbestos products were used extensively throughout the 20th century in a vast variety of applications. Many of asbestos products were believed to be responsible for asbestos exposure sustained by both the individuals who manufactured the products as well as those who used them at commercial and industrial jobsites including shipyards, refineries, power plants, steel plants and more. Several asbestos companies continued to produce these products even after they were known to be hazardous and harmful to workers and their families. Those who have become ill because of exposure to asbestos products may now be eligible for financial compensation if they were wrongfully exposed.
Asbestos was also used at many New York jobsites including Ground Zero and the former World Trade Center site. Common asbestos exposure sites in New York include the Brooklyn Navy Yard, Todd Shipyard, and the Con Edison power plant in New York City.
Showing posts with label Exposure to Asbestos. Show all posts
Showing posts with label Exposure to Asbestos. Show all posts
Diagnosis of Mesothelioma
Diagnosis of mesothelioma is often hard, because symptoms of mesothelioma are similar to those of a number of other conditions. Diagnosis of mesothelioma starts with the patient's medical history review. A history of exposure to asbestos may increase clinical suspicion for mesothelioma.
An examination on physical aspects is performed, followed by chest X-ray and often lung function tests. The X-ray may reveal pleural thickening commonly seen after asbestos exposure and increases suspicion of mesothelioma. A CT (or CAT) scan or an MRI is usually done. If there is a large amount of fluid, abnormal cells may be detected by cytology if this fluid is aspirated with a syringe. For pleural fluid this is done by a pleural tap or chest drain, in ascites with an paracentesis or ascitic drain and in a pericardial effusion with pericardiocentesis. While absence of malignant cells on cytology does not completely exclude mesothelioma, it makes it much more unlikely, especially if an alternative diagnosis can be made (e.g. tuberculosis, heart failure).
If cytology is positive or a plaque is regarded as suspicious, a biopsy is needed to confirm a diagnosis of mesothelioma. A doctor removes a sample of tissue for examination under a microscope by a pathologist. A biopsy may be performed in different ways, depending on where the abnormal area is located. If the cancer is in the chest, the doctor may perform a thoracoscopy. In this procedure, the doctor makes a small cut through the chest wall and puts a thin, lighted tube called a thoracoscope into the chest between two ribs. Thoracoscopy allows the doctor to look inside the chest and obtain tissue samples.
If the cancer is in the abdomen, the doctor may perform a laparoscopy. To obtain tissue for examination, the doctor makes a small incision in the abdomen and inserts a special instrument into the abdominal cavity. If these procedures do not yield enough tissue, more extensive diagnostic surgery may be necessary.
An examination on physical aspects is performed, followed by chest X-ray and often lung function tests. The X-ray may reveal pleural thickening commonly seen after asbestos exposure and increases suspicion of mesothelioma. A CT (or CAT) scan or an MRI is usually done. If there is a large amount of fluid, abnormal cells may be detected by cytology if this fluid is aspirated with a syringe. For pleural fluid this is done by a pleural tap or chest drain, in ascites with an paracentesis or ascitic drain and in a pericardial effusion with pericardiocentesis. While absence of malignant cells on cytology does not completely exclude mesothelioma, it makes it much more unlikely, especially if an alternative diagnosis can be made (e.g. tuberculosis, heart failure).
If cytology is positive or a plaque is regarded as suspicious, a biopsy is needed to confirm a diagnosis of mesothelioma. A doctor removes a sample of tissue for examination under a microscope by a pathologist. A biopsy may be performed in different ways, depending on where the abnormal area is located. If the cancer is in the chest, the doctor may perform a thoracoscopy. In this procedure, the doctor makes a small cut through the chest wall and puts a thin, lighted tube called a thoracoscope into the chest between two ribs. Thoracoscopy allows the doctor to look inside the chest and obtain tissue samples.
If the cancer is in the abdomen, the doctor may perform a laparoscopy. To obtain tissue for examination, the doctor makes a small incision in the abdomen and inserts a special instrument into the abdominal cavity. If these procedures do not yield enough tissue, more extensive diagnostic surgery may be necessary.
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