The purpose of cancer screening tests is to detect pre-cancer or early-stage cancer in
asymptomaticindividuals so that timely diagnosis and early treatment can be offered, where …

Cancer screening is a cornerstone of preventive health care. For screening to be effective, it
must detect cancer in a preclinical phase, before the cancer becomes clinically apparent …

Screening is regarded as a cost-effective and clinically useful approach for the early
diagnosis of several malignancies, especially such common cancers as those of the breast …

Screening for cancer has to be carefully organized for maximum effectiveness, and
introduced in full understanding of the natural history of the disease. There are major …

Screening for cancer is defined as testing to detect presymptomatic disease in a population
to reduce the incidence rate of advanced disease and initiate treatment earlier. For some …

The large majority of human cancer diagnosed each year may be avoidable, but avoidable
causes of many common cancers have not yet been clearly identified. A prerequisite of …

Screening refers to the use of relatively simple tests across an apparently healthy population
in order to identify individuals who have risk factors or an unrecognized disease or defect …

Screening should allow for the anticipation of cancer diagnosis at an earlier stage, when
curative treatment is possible. Screening for cervical, large bowel, and breast cancer were …

For almost all of the sites of most common cancers, particularly the lung, colo-rectum and
cervix, relatively inexpensive and reliable tests have been available for some time …

BACKGROUND: Screening is a two edged sword, with potential benefits and harms. Despite
professional and public enthusiasm for cancer screening there are substantial harms, and …