Mesothelioma can occur in a number of different variations. Pleural mesothelioma is the most commonly diagnosed version of this type of cancer. It originates in the mesothelial cells which are located in the mesothelium. The mesothelium is a very thin lining that functions like a membrane in order to connect and protect several organs inside the human body.

Pleural mesothelioma specifically starts in the lining of the lungs, also referred to as pleural membrane or pleura. The pleura is made ...