title: The case for surveillance of high-risk' families.
abstract: Patients who have an elevated colorectal cancer risk on the basis of heritable susceptibility can be identified in two ways. First, family history information may indicate empirical risks approaching 50%, while assignment of relative risks of 2.0-4.0 to groups of patients fulfilling certain family history criteria is commonplace. Second, assessment of blood samples by mutation analysis of DNA mismatch repair genes that are known to be responsible for hereditary nonpolyposis colorectal cancer (HNPCC) now affords diagnostic assessment in increasing numbers of families. This review explores the issues involved in identifying families with genetic susceptibility to colorectal cancer and discusses the rationale for clinical screening in at-risk relatives.
authors.affiliation: Department of Surgery, University of Edinburgh and MRC Human Genetics Unit, Western General Hospital, UK.
authors.forename: M G
authors.initials: MG
authors.lastname: Dunlop
mesh_terms: D000328:Adult; D003113:Colonoscopy; D015179:Colorectal Neoplasms / Q000235:genetics* / Q000401:mortality / Q000517:prevention & control*; D004260:DNA Repair / Q000235:genetics; D004268:DNA-Binding Proteins; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000379:methods*; D051718:MutS Homolog 2 Protein; D010375:Pedigree; D011518:Proto-Oncogene Proteins / Q000235:genetics; D012306:Risk; D012307:Risk Factors; D015996:Survival Rate
chemical_list: D004268:DNA-Binding Proteins; D011518:Proto-Oncogene Proteins; C497172:MSH2 protein, human; D051718:MutS Homolog 2 Protein