Small cell lung cancer stage IV is an advanced stage of lung cancer with more serious disease.
Small cell lung cancer is a kind of malignant tumor originated from the epithelium of bronchial mucosa. It is currently believed that its pathogenesis is closely related to smoking, ionizing radiation, heredity and other factors.
Stage IV small cell lung cancer, which indicates that the lung cancer has metastasized to distant organs, belongs to advanced lung cancer, which is the most serious stage of the disease and has a poor overall prognosis with a five-year survival rate of less than 3%.
Patients should actively cooperate with specialists to formulate a comprehensive treatment plan, including radiotherapy, chemotherapy and immune-targeted therapy, etc., to try to improve patients’ quality of life and prolong survival time.