Yesterday, a patient’s partner, who was discharged from the hospital after surgery, came to the clinic in a hurry with the discharge papers and asked me, “Director Liu, our partner was hospitalized with lung cancer, but the discharge form says bronchial lung cancer, is it because the disease has developed and a tumor has grown in the trachea? The full name of lung cancer is primary bronchial lung cancer, and the word lung cancer we usually mention is just a short form. The term lung cancer is just an abbreviation, but it means the same thing. Most of the lung cancer cells originate from the mucosal epithelium or glands of the bronchus, and malignant changes can occur from the main bronchus to the fine bronchus to form lung cancer. There is a statistical summary that the incidence of lung cancer is more in the right lung than in the left lung, and more in the upper lobe than in the lower lobe. After malignant transformation at the bronchial site, tumor cells may grow into the bronchial lumen or/and adjacent lung tissues and gradually develop clinical symptoms and be detected by imaging.