Abstract
A review of the literature regarding the screening strategies for colorectal cancer (CRC), particularly for average risk individuals, is analysed. The advantages and disadvantages or limitations of screening modalities for CRC, such as faecal occult blood testing (FOBT) with guaiac-based tests or the new faecal deoxyribonucleic acid tests, endoscopic screening by flexible sigmoidoscopy, colonoscopy, or CT-colonography and double contrast barium enema examination, are reported. The efficacy and cost of the screening tests are evaluated, and it is found that any of the suggested tests is more cost effective than other medical intervention or treatment as compared with no screening. The reported compliance to any form of screening test was 30-40%, a rate that is low enough. The experience of our surgical department of a screening programme, based on FOBT, on 4189 individuals over 50 years old, and application of colonoscopy in positive subjects, is reported.
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