What Causes Lung Cancer?

Medicalhaleroad03 Mar, 2021Health

According to scientists, there are two basic types of lung cancers ? those that start from outer parts of the lungs called non-small cell lung cancer (NSCLC), and extremely aggressive tumors from lung substance named small cell lung cancer (SCLC). Of these two, NSCLC accounts for 80-85% of reported cases. The two subsets of NSCLC are adenocarcinomas and squamous cell carcinomas of cells that line the respiratory tract. Adenocarcinoma in situ is a rare but benign form of adenocarcinoma that starts from alveoli (air sacs) and may not require urgent treatment. Faster growing NSCLC include large cell carcinoma and large cell neuroendocrine cancers.