Difference and harm between lung adenocarcinoma and lung squamous cell carcinoma

First of all, common symptoms are different.

1, Lung adenocarcinoma: There are generally no obvious clinical symptoms in the early stage, and most of them are found in chest X-ray examination. It is characterized by a round or oval mass, which generally grows slowly, but sometimes there is blood metastasis in the early stage. Later, lymphatic metastasis occurred.

2, lung squamous cell carcinoma: fever, cough, bloody sputum or hemoptysis, chest pain.

Second, different origins.

1, lung adenocarcinoma: originated from bronchial mucosa epithelium, and a few originated from mucous glands of large bronchi.

2. Squamous cell carcinoma of lung: It is mainly due to chronic stimulation and injury of columnar epithelial cells of bronchial mucosa, cilia shedding, squamous metaplasia of basal cells, atypical hyperplasia and hypoplasia, and it is most likely to mutate into cancer.

Third, the harm is different.

1, lung adenocarcinoma: causing bronchial obstruction, the original normal alveolar cavity disappears, affecting the exchange of oxygen and carbon dioxide, and patients will feel chest tightness and shortness of breath; If lung cancer is not controlled in time, it will deteriorate rapidly and pose a great threat to patients' lives.

2, lung squamous cell carcinoma: often lead to bronchial stenosis, or obstructive pneumonia.

Baidu encyclopedia-lung squamous cell carcinoma

Baidu encyclopedia-lung adenocarcinoma