Health Sciences Mesothelioma Guide-Melissa Marsiglia Community Outreach Mesothelioma Guide. Our organization is dedicated to helping inform the public about Mesothelioma and assisting patients diagnosed with asbestos illnesses. Mesothelioma is a rare cancer caused by exposure to asbestos particles and affects the lining of the lungs, heart, and abdomen. Mesothelioma cancer affects the lining of the lungs, heart, and abdomen and can sometimes be misdiagnosed as other types of cancer. We specialize in connecting patients with doctors and treatment options that are best suited for them. Our information services and resources are 100% free to patients and family members..