Li Weimin: Early chest X-ray screening for lung cancer is of little significance. What are the early symptoms of lung cancer?

In China, the incidence and mortality of lung cancer are 1, ranking first among all cancers. According to the data of the Cancer Center, lung cancer deaths account for more than 20% of all cancer deaths. It is equivalent to four people dying of cancer, so one of them is a lung cancer patient. The early symptoms of lung cancer are not obvious. If you want to find some potential or hidden diseases, regular screening is very important.

Li Weimin, president of West China Hospital in Sichuan, suggested that low-dose spiral CT could detect early lung cancer. Moreover, the mortality rate of lung cancer will be reduced, which is also the most important means of screening lung cancer. But chest X-ray can't screen early lung cancer, because if the nodule density is low, even less than one centimeter, it is difficult to find. Moreover, in some special parts of the nodules, chest X-ray can not be found. Therefore, if you want to screen for early lung cancer, it is of little significance to have a chest X-ray.

There will be some symptoms in the early stage of lung cancer, such as swollen eyes and drooping eyelids, which are all early signs of lung cancer. In other words, the cancer tissue in the lungs will compress the nerves in the face or eyes, causing eye edema, similar to panda eyes. If cancer cells invade lymph nodes or compress the superior vena cava during metastasis, it will cause swelling of the face, neck or upper limbs.

Moreover, fever rarely occurs in early lung cancer, but if there are other conditions, symptoms of fever will appear. If lung cancer cells metastasize to the brain, they will have headaches, so many patients think it is hypertension or cervical spondylosis, and they don't pay much attention to this aspect. Also, if you find a irritating cough with a metallic sound, there will be some bloodshot in the sputum. Long-term treatment is not good, and it is not inflammation or tuberculosis, so it is suspected that it may be lung cancer.