Among KRAS-mutated CRC samples, the frequencies KRAS mutations were as follows: G12, 64.5% (240/372); G13, 20.2% (75/372); A146, 8.1% (30/372); Q61, 2.7% (10/372); K117, 2.7% (10/372); Q22, 0.5% (2/372); A59, 0.5% (2/372), and 0.3% (1/372) for A14, G77 and Y64 mutations. This evidence concerns the gene KRAS and colorectal carcinoma.