What Is a Pleural Effusion and How Does It Relate to Mesothelioma?
One symptom of mesothelioma or asbestos cancer is called pleural effusion, or a build up of the fluid that is between the parietal pleura and the visceral pleura. The parietal pleura covers the chest wall and diaphragm and the visceral pleura covers the lungs. These membranes are coated with mesothelial cells, which normally secrete a lubricating fluid that protects the space between the chest wall and lung. Normally, any excess fluid that the mesothelial cells secrete is absorbed into the bloodstream and into the lymph nodes. When too much of this fluid builds up a condition known as an effusion occurs and this is one symptom of mesothelioma. How to Know If A Pleural Effusion Is Caused By Mesothelioma There are typically two types of pleural effusions that are seen by doctors. The most common is the type known as transudates. Transudate fluid is usually clear in color and often forms when there is an imbalance between fluid produced and fluid removed, such as during cases of congestiv