what is mesothelioma cancer
What is mesothelioma? Mesothelioma is a rare form of cancer (malignancy) that most frequently arises from the cells lining the sacs of the chest (the pleura) or the abdomen (the peritoneum). Pleural mesothelioma is the most common form, often presenting with symptoms in the chest area.Peritoneal mesothelioma is much less common.This can affect the organs in the abdomen, and its symptoms are related to this area of the body, that is, abdominal swelling, nausea, vomiting, and bowel obstruction.esothelioma facts. 1  Mesothelioma is a cancer that arises from the cells lining the chest or abdominal cavities. 2  Mesothelioma typically results from exposure to asbestos. 3  When mesothelioma affects the chest, the doctor may look inside the chest cavity with a special instrument called a thoracoscope.