What are the beginning symptoms of lung cancer?
Lung cancer-Cancer arising in the epithelium of the air passages(bronchial cancer) or lung.It is a very common form of cancer and it is strongly associated with cigarette smoking and exposure to industrial air pollutants(including asbestos).There are often no symptoms in the early stages of the disease,when diagnosis is made on X-ray examination.Treatment includes surgical removal of the affected lobe or lung( 20% of cases are suitable for surgery),radiotherapy,and chemotherapy.
