Malignant mesothelioma is a type of cancer that affects the lining of the body’s organs and structures, known as the mesothelium, often in the lungs and chest wall. This rare cancer is usually caused by exposure to asbestos, a fiber that was once used to insulate homes, commercial buildings, and schools. Until recently, treatment choices were limited. Today, our world-renowned team of experts offers many treatment options, including surgery, chemotherapy, and radiation therapy. New targeted drugs, immunotherapies, and gene therapies may also be available to you through clinical trials.