While both mesothelioma and non-small cell lung cancer (NSCLC) can present as serious respiratory illnesses, they have distinct origins. Mesothelioma is a rare disease that arises from the lining of the lungs' pleura. https://tayavuey016092.eedblog.com/36908290/mesothelioma-vs-non-small-cell-lung-cancer-understanding-the-difference