Which of the following are used as criteria to decide whether genetic testing for hereditary nonpolyposis colon cancer (HNPCC) is appropriate?

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All of the options listed are used as criteria to decide whether genetic testing for hereditary nonpolyposis colon cancer (HNPCC), also known as Lynch syndrome, is appropriate. Family history provides insight into the genetic risk, clinical information helps in understanding the nature of the cancer, microsatellite instability testing identifies genetic hypermutability, and staining for the presence of mismatch repair proteins helps in identifying the molecular signature of HNPCC.

Which of the Following Are Used as Criteria to Decide