1. Lung cancer By Hanchu Zhang, Billy Shi and Hongyu Mao

2. Lung cancer Introduce Symptom Causes Tests and diagnosis

3. Introduce Lung cancer is cancer that begins in the lungs, the two organs found in the chest that help you breathe. In America, many people died from lung cancer. The reason why they got lung cancer, because they smoke too much.

4. Symptom Early lung cancer may not cause any symptoms. Many times, lung cancer is found when an x-ray is done for another reason. Like Cough that doesn't go away Coughing up blood. Or shortness of breath.

5. cause Lung cancer is more common in older adults. It is rare in people under age 45. In the America, most people died from lung cancer. The reason why they got lung cancer, because they smoke too much. However, there are people died but never smoke. The reason are High levels of air pollution or Family history of lung cancer.

6. tests and diagnosis When you don’t know did you got this disease. the best chance is go to the hospital to ask the doctor. The doctor will Chest x-ray. Sputum cytology test to look for cancer cells. or to Blood work.

7. Thank you for watching 2010-3-10 Hanchu Zhang, Billy Shi and Hongyu Mao