All CRC cases were at pathological stage III and were treated with standard surgical resection followed by adjuvant chemotherapy with the mFOLFOX6 regimen (5-fluorouracil, leucovorin, and oxaliplatin)….Based on mutations in DDR genes (Fig. 3), we found co-occurrence of BRCA2 and TP53 somatic mutations to be associated with a poor prognosis. The median survival duration was 26.9 months.