keuhkosyövästä

Keuhkosyöpä, also known as lung cancer, is a disease characterized by the uncontrolled growth of abnormal cells in the lungs. These abnormal cells can form tumors, which can interfere with the lungs' ability to function and can spread to other parts of the body. The most common cause of lung cancer is smoking, which accounts for the vast majority of cases. Other risk factors include exposure to secondhand smoke, radon gas, asbestos, and certain occupational exposures.

There are two main types of lung cancer: non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC). NSCLC is more common and tends to grow and spread more slowly than SCLC. SCLC is more aggressive and often spreads quickly. Symptoms of lung cancer can vary but often include a persistent cough, coughing up blood, shortness of breath, chest pain, and unexplained weight loss. In some cases, lung cancer may not cause symptoms until it has advanced.

Diagnosis typically involves imaging tests such as chest X-rays and CT scans, followed by a biopsy to confirm the presence of cancer cells and determine the type of lung cancer. Treatment options depend on the type and stage of the cancer, as well as the patient's overall health. Common treatments include surgery, chemotherapy, radiation therapy, and targeted therapy. Early detection and treatment are crucial for improving outcomes in lung cancer patients. Public health efforts focus on smoking cessation and reducing exposure to other risk factors.