Non-small cell lung cancer, which mainly includes adenocarcinoma, phosphoric cell carcinoma, and large cell carcinoma, is one of the most common malignant diseases in the world today. Its causes are mostly related to smoking, ionizing radiation, occupation and external environment, previous chronic lung infections, genetic factors, and air pollution. The early clinical manifestations are mostly chest distension, cough, coughing with blood in sputum and low fever. Patients with advanced cancer may experience fatigue, loss of appetite, weight loss, and difficulty in breathing.
Non-small cell lung cancer antigen is a tumor marker, which can be used as a reference for the diagnosis of lung cancer. Its normal value is 0-3.3, so when the index value is greater than 3.3, we should consider whether lung cancer has occurred. Imaging or pathological examination can be taken to further confirm the diagnosis, so as not to delay the disease. As non-small cell lung cancer is a malignant tumor, its treatment methods are mostly surgery and radiotherapy. However, those with extensive metastasis, invasive mediastinal lymph node metastasis or severe visceral insufficiency cannot be treated by surgery.