While both mesothelioma and non-small cell lung cancer (NSCLC) can present as serious respiratory illnesses, they have distinct origins. Mesothelioma is a rare cancer that arises from the membrane of the lungs' pleura. https://prestonzjch260594.blogdanica.com/36793038/differentiating-mesothelioma-and-non-small-cell-lung-cancer