cancer of lung的意思|示意

'

Lung cancer, also known as pulmonary cancer, is a type of cancer that originates in the lungs. It is caused by uncontrolled cell growth in tissues of the lung. This abnormal cell growth may lead to tumor formation or may spread (metastasize) to other parts of the body.

There are several types of lung cancer, the two main types being non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC). NSCLC is the most common type of lung cancer and is usually further categorized into three types: adenocarcinoma, squamous cell carcinoma, and large cell carcinoma. Small cell lung cancer is also known as oat cell cancer and is less common than NSCLC.

The initial symptom of lung cancer is usually a persistent cough, which worsens over time. Other symptoms may include coughing up blood, chest pain, shortness of breath, wheezing, and fatigue. Once the cancer has spread to other organs in the body, the symptoms may vary depending on the organs involved.

There are several treatments available for lung cancer, depending on its type, stage of progression, and the person's overall health. Treatment options include surgery, chemotherapy, radiation therapy, and targeted drug therapy. In some cases, a combination of two or more treatment methods may be used. In addition, lifestyle changes can be made to help improve the person's prognosis and quality of life.

Lung cancer is one of the leading causes of cancer-related deaths worldwide. However, early diagnosis and treatment can improve the chances of survival. It is important to see a doctor if any signs or symptoms of lung cancer are present.