There are three forms of malignant mesothelioma: pleural mesothelioma (most common), peritoneal mesothelioma, and pericardial mesothelioma. Pleural mesothelioma is a tumor on the lining of the lung. Peritoneal mesothelioma is in the abdominal cavity. Pericardial mesothelioma, as you might expect, affects the lining around the heart.

A diagnosis of mesothelioma can be devastating. Many thoughts may go through your mind. You may feel uncertain about how your family and friends will react, and what changes will take place in your life and theirs because of your illness. It is not uncommon to feel numb or confused when you first hear you have cancer, but accepting the diagnosis, and then moving ahead is important to both your well-being and those you are close to.

Mesothelioma is diagnosed by pathological examination. They remove tissue and a pathologists looks at it under the microscope and identifies malignant cells. This is the end of a process that usually begins with symptoms that send most people to the doctor: a fluid build-up or pleural effusions, shortness of breath, pain in the chest, or pain or swelling in the abdomen. The doctor may order an x-ray or CT scan of the chest or abdomen.