How to diagnose lung cancer? Differential diagnosis of lung cancer

Lung cancer is a common disease that is difficult to cure. It refers to the damage to lung function, which causes chest tightness and shortness of breath when breathing. This symptom is generally caused by the enlargement of the patient's lung tumor. As the disease spreads and worsens, the bronchus is squeezed, resulting in chest tightness and shortness of breath. In severe cases, it can endanger the patient's shortness of breath or even stop breathing. It is a malignant tumor and should be distinguished from pulmonary tuberculosis or pneumonia. In order to facilitate symptomatic treatment.

The lungs are the purifiers of the human body. The human body mainly relies on the expansion and contraction of the lungs to breathe. However, once the lungs are diseased, the inflammation will compress the bronchi and narrow them, causing breathing difficulties, which in turn leads to chest tightness, shortness of breath, rapid breathing or respiratory arrest, which is life-threatening. There are many causes of chest tightness and shortness of breath in patients. So, how should the differential diagnosis of lung cancer be carried out?

1. First of all, to make a differential diagnosis of lung cancer, it is necessary to rule out the presence or absence of pulmonary tuberculosis in the patient: pulmonary tuberculosis can also directly cause chest tightness and shortness of breath in the patient, which can be checked through X-ray film. It can be seen from the X-ray film that if the boundary of the diseased site is clear, the density is uneven, calcification points can sometimes be seen, and there are tuberculosis lesions in the lungs accompanied by cavitation; or the patient does not have hemoptysis, but often has fever and other symptoms of tuberculosis infection and poisoning; these symptoms indicate that the patient may have pulmonary tuberculosis and needs to be treated with anti-tuberculosis drugs.

2. Various inflammations of the lungs can also cause chest tightness and shortness of breath. For example, bronchitis can cause high fever, cough, yellow sputum, and flaky or spotted shadows in lung X-rays. Obstructive pneumonia caused by early lung cancer can be easily misdiagnosed as bronchopneumonia.

3. There is another type of lung inflammation, such as lung abscess, which should also be distinguished from the cavity formed by lung cancer. Lung abscess develops more rapidly, and its symptoms include cough, high fever, chills, and thick sputum with a foul odor. X-ray examinations show that the walls of the cavities in the lungs are thin and there are inflammatory changes around them. These obvious symptoms indicate that the patient does not have lung cancer, but lung abscess.