Mesothelioma is a form of cancer which occurs in thin membranes (called the mesothelium) lining the chest, lungs, abdomen and sometimes the heart. Although quite rare, mesothelioma symptoms strike more than 200 people each year in the United States. The majority of mesothelioma cases are directly linked to asbestos exposure. Because of the long latency period of mesothelioma, the average age of patients is between 50 and 70 years. Mesothelioma affects men most due to the high exposure of asbestos in industrial typed jobs. Mesothelioma symptoms include respiratory problems, shortness of breath, continual cough and pneumonia. Other mesothelioma symptoms include weight loss, abdominal problems and swelling. In some mesothelioma patients, the mesothelioma symptoms are quite muted, making it hard for mesothelioma doctors to diagnose. Mesothelioma doctors specialize in the study, research, and treatments of Mesothelioma cancers. Mesothelioma (or the cancer of the mesothelium) is a disease in which cells become abnormal and replicate without control. During Mesothelioma, these cells will invade and damage tissues and organs. Mesothelioma cancer cells can spread throughout the body causing death. http://themesothelioma-symptoms.blogspot.com/2009/08/mesothelioma-cancerand-asbestos.html