The history and current situation of colorectal carcinoma ( CRC ) screening worldwide are briefly reviewed. The disparities between China and the developed countries in terms of CRC screening are analyzed. The necessity and feasibility of opportunistic screening of CRC in China is recommended based on Chinese national economical & medical system.%本文简要回顾国内外大肠肿瘤筛查的现状以及与世界发达国家的差异;根据近年来我国大肠肿瘤筛查的实践与国外大肠肿瘤筛查指南的比较,分析我国开展大肠肿瘤伺机性筛查的必要性和可行性.基于我国现行医疗制度和国家经济状况,推荐伺机性筛查大肠肿瘤.
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