Cooks and chemists also have an increased risk. Lung cancer begins by cellular changes in the bronchial epithelial cells and can invade adjacent tissues before symptoms are noticed. There are many types of lung cancer, but most can be categorized into two basic types, small cell and nonsmall cell. The nonsmall type may not have spread at the time of diagnosis, and surgical resection of this type may be possible. Treatment is based on determining the cellular type of the cancer, and by staging, which determines the size of the primary tumor and the extent of spreading to lymph nodes or sites of metastasis .
Lung cancer is the leading cause of death in both men and women.
The peak incidence occurs between 55 and 65 years old. The incidence is 1 out of 1,000 people. Try to avoid second-hand smoke . Chemotherapy and radiation therapy are other forms of treatment. See cancer - support group .