Lung cancer is mainly divided into two pathological types: small cell carcinoma and non-small cell carcinoma, and lung adenocarcinoma is a kind of non-small cell carcinoma. Its malignant degree is relatively lower and its condition progress is relatively slower. At the same time, lung adenocarcinoma is a kind of tumor that is less likely to metastasize, and with the development of medical technology, lung adenocarcinoma patients’ survival period is relatively longer, so naturally there is a saying of inert lung adenocarcinoma, and at present, patients’ survival period of lung adenocarcinoma can be more than five years, or even ten years.
Lung adenocarcinoma is mainly related to smoking, air pollution, ionizing radiation or hereditary factors, etc. Usually patients will show symptoms such as cough, chest pain or weight loss. With the development of medical technology, lung adenocarcinoma patients can adhere to long-term drug treatment to prolong the survival period due to the high efficiency of targeted drug treatment and less side effects.