Identification of individuals who should undergo hereditary nonpolyposis colorectal cancer (HNPCC) genetic testing is a critical and difficult issue. For this purpose, the National Cancer Institute outlined a set of recommendations, the Bethesda guidelines, which have recently been revised.
Clinical performance of original and revised Bethesda guidelines for the identification of MSH2/MLH1 gene carriers in patients with newly diagnosed colorectal cancer: proposal of a new and simpler set of recommendations.