Lung Cancer: Causes, Symptoms, and Treatments

Introduction to Lung Cancer

Lung cancer, also known as malignant tumor of the lung, is a complex disease with multiple causes and a gradual development process. Its formation is primarily associated with genetics, unhealthy lifestyle habits, pollution, and smoking. Symptoms of lung cancer include chest tightness, coughing, chest pain, shortness of breath, and hemoptysis.

Survival Rates and Prognosis of Lung Cancer

Survival rates and prognosis of lung cancer depend on various factors, including the effectiveness of treatment, the pathological type of the cancer, and the stage of the disease. Early-stage lung cancer, if treated with surgical resection, can potentially lead to long-term survival without significantly affecting lifespan. However, for mid- and late-stage lung cancer, surgical resection may not be feasible, and palliative radiotherapy and chemotherapy may be considered. In these cases, survival rates are generally 1-2 years, but some patients may have a shorter survival time.

Genetic testing may be considered for some lung cancer patients to determine if targeted therapy is a suitable treatment option. If targeted therapy is effective, it can potentially extend survival.

CT Manifestations of Lung Cancer

CT scans of lung cancer often reveal eccentric cavities with irregular walls, presenting as spherical or lobulated masses. These masses may have irregular, spiculated shadows with indistinct boundaries. In cases of malignancy accompanied by pleural effusion, a distinct arc-shaped effusion shadow may be visible. Severe cases may manifest as local atelectasis, compensatory emphysema, and obstructive pneumonia with diffuse dense shadows indicating infection.

Causes of Lung Cancer

Lung cancer is a malignant tumor of the lung caused by various factors, including genetics, pollution, smoking, and unhealthy lifestyle habits. The disease is characterized by symptoms such as coughing, sputum production, hemoptysis, chest pain, chest tightness, and shortness of breath.

It is important to note that early detection and timely treatment are crucial for improving survival rates and quality of life in lung cancer patients. Therefore, individuals should be aware of the risk factors and symptoms of lung cancer and seek medical attention promptly if any suspicious symptoms arise.