How should lung cancer be diagnosed? Clinical diagnostic methods for lung cancer

The treatment of lung cancer is a problem that many people are very concerned about. Nowadays, there are many patients with lung cancer, so everyone has to pay attention to the treatment of the disease. However, to treat lung cancer, everyone should first make a correct diagnosis and not blindly treat it in order to ensure the treatment effect.

1. X-ray examination. X-ray examination is the most commonly used method for diagnosing lung cancer. X-ray examination can help you understand the location and size of lung cancer. Although X-ray examination of early lung cancer cases may not show a mass, it may reveal local emphysema and atelectasis caused by bronchial obstruction, or infiltrative lesions or pulmonary inflammation in the vicinity of the lesion.

2. Bronchoscopy. Bronchoscopy is an important diagnostic method for lung cancer. The pathological changes of the bronchial lining and lumen can be directly observed through a bronchoscope. If cancer or cancerous infiltration is observed, tissue can be taken for pathological section examination, or bronchial secretions can be aspirated for cytological examination to confirm the diagnosis and determine the histological type.

3. Radionuclide examination. Radioactive drugs such as 67Ga-citrate have an affinity for lung cancer and its metastatic lesions. After intravenous injection, they can be concentrated in the tumor and can be used for the diagnosis of lung cancer to show the scope of the cancer. The positive rate can reach about 90%.

4. Cytological examination. Most patients with primary lung cancer can find detached cancer cells in their sputum, and the histological type of the cancer cells can be determined. Therefore, sputum cytological examination is a simple and effective method for diagnosing lung cancer. The positive rate of sputum cytological examination for central lung cancer can reach 70-90%, while the positive rate of sputum examination for peripheral lung cancer is only about 50%. Therefore, a negative sputum cytological examination cannot rule out the possibility of lung cancer.

Although lung cancer is a very difficult disease to cure, there are many methods of treating the disease in clinical practice. If the patient can actively undergo treatment, the treatment effect is also good. During the treatment process, the patient should also adjust his or her diet in order to effectively control the disease.