The only known cause for Pleura Mesothelioma is exposure to Asbestos. When Asbestos fibers are inhaled, they can lodge in the cells of the Pleura, a membrane that lines the chest cavity and lungs. Find out more about Pleura and Mesothelioma, the cancer that affect these areas, at our website. If you have been exposed to Asbestos in the San Francisco area, call us today to review your case.