Lung Cancer Screening (PDQ®): Screening - Patient Information [NCI] - What is screening?
Screening is looking for cancer before a person has any symptoms. This can help find cancer at an early stage. When abnormal tissue or cancer is found early, it may be easier to treat. By the time symptoms appear, cancer may have begun to spread.
Scientists are trying to better understand which people are more likely to get certain types of cancer. They also study the things we do and the things around us to see if they cause cancer. This information helps doctors recommend who should be screened for cancer, which screening tests should be used, and how often the tests should be done.
Several staging systems have been proposed for small cell lung cancer (SCLC). These staging systems include the following:
American Joint Committee on Cancer (AJCC) Tumor, Node, and Metastasis (TNM).
Veterans Administration Lung Study Group (VALG).
International Association for the Study of Lung Cancer (IASLC).
No universally accepted definition of this term is available. Limited-stage disease (LD) SCLC is confined to the...