What tests are helpful in diagnosing lung cancer? These tests are needed to diagnose lung cancer

Lung cancer is a highly malignant tumor disease, which often causes patients to experience symptoms such as low fever, fatigue, dry cough, etc., and metastasis and spread will occur as the disease progresses. Lung cancer must be detected and treated early. Currently, auxiliary examinations used to examine lung cancer generally include chest imaging examinations, blood biochemical examinations, and cell and histological examinations, which can provide a clear diagnosis in a timely manner.

Lung cancer can seriously threaten the patient's life safety. If it spreads and metastasizes in the later stages of the disease, it can also cause damage to other organs and tissues. The occurrence of lung cancer may be related to factors such as long-term smoking and bad eating habits, and environmental factors can also induce the occurrence of lung cancer. Lung cancer patients can undergo some necessary auxiliary examinations in the early stages of the disease to make a timely and clear diagnosis. There are usually three common methods.

1. Chest imaging examination

Lung cancer tissue will show abnormalities in chest X-rays, CT scans, or MRIs, with local shadows and very blurred boundaries. If patients often experience coughing, low-grade fever, and other discomfort symptoms, it is necessary to perform chest imaging examinations in a timely manner to detect local lesions early.

2. Blood biochemical examination

For lung cancer, blood biochemical tests can be used to check tumor markers, blood gas analysis, liver and kidney function, and often some abnormal changes will be found. In the early stages of lung cancer, there may be a decrease in lymphocytes and neutrophils, and sometimes the erythrocyte sedimentation rate may be accelerated. Tumor markers such as carcinoembryonic antigen CEA and cytokeratin will show positive results, which are also of great reference value for the diagnosis of lung cancer.

3. Cytological and histological examination

This examination is mainly a pathological biopsy, which takes the diseased tissue through local puncture and then makes a pathological section, so that the pathological type of lung cancer can be determined, such as squamous cell carcinoma, adenocarcinoma, small cell carcinoma, etc. At the same time, sputum specimens can also be collected for sputum cell examination, which will greatly improve the diagnosis rate of lung cancer.

The above three auxiliary examinations can generally be performed for lung cancer, and abnormalities can usually be detected in time. After lung cancer is diagnosed, it is usually necessary to undergo surgical resection as soon as possible, followed by postoperative radiotherapy and chemotherapy. Such active treatment can significantly improve the patient's prognosis. Timely diagnosis is of great significance for the treatment of lung cancer. Once the patient has discomfort symptoms, corresponding examinations need to be carried out as soon as possible, and the condition must not be delayed.