HNPCC Colon Cancer

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Lynch Syndrome (HNPCC) and Microsatellite Instability (Stand Alone)The Correct Answer is A

History is most consistent with HNPCC


HNPCC is linked to mutations caused by microsatellite instability in several mismatch repair genes, notably hMSH2 & hMLH1. As a result, there is defect repair of DNA mismatches with abnormal cell growth & tumour development. The majority of these mutations are inactivating insertions or deletions.



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