Identification of mismatch repair gene mutations in young patients with colorectal cancer and in patients with multiple tumours associated with hereditary non‐polyposis colorectal cancer

摘要

BackgroundPatients with early‐onset colorectal cancer (CRC) or those with multiple tumours associated with hereditary non‐polyposis colorectal cancer (HNPCC) raise suspicion of the presence of germline DNA mismatch repair (MMR) gene mutations.