Can lung cancer be ruled out if there is no abnormality in chest CT?

The chest CT is able to visualize lung disease, including inflammatory changes in the lung and its occupying lesions, but a normal chest X-ray does not completely rule out lung cancer. In general, a chest x-ray can detect a large localized mass or advanced lung cancer, but some early-stage lung cancers with small lesions, especially those located behind the heart, next to the spine or at the tip of the lung, are often undetectable on chest x-rays, resulting in delayed early lung cancer treatment.

It is difficult to detect the symptoms of lung cancer because there are no symptoms in its early stages and it is not painful, but generally speaking, people at risk who are 50 years old and have been smoking for a long time or have a family history of tumors are recommended to have annual low-dose CT lung cancer screening. The most important thing is early detection, early diagnosis, and early treatment in order to effectively improve patient prognosis and increase survival rates.

The most important thing to do is to find out early, diagnose early and treat early in order to improve the patient’s prognosis and improve the survival rate.

We should do our best to prevent lung cancer, try to reduce outdoor activities during hazy weather, close the windows and doors indoors, rinse the nose and mouth when we come back from outside, and keep some dust-absorbing green plants indoors. The most important thing is to have a good understanding of the situation.