KRAS mutations occur in 35% to 45% of colorectal cancer (CRC), mostly in codon 12 (80%), c.35 G > A (G12D) and c.35 G > T (G12V) transversions, representing 32.5% [14,15] and 22.5% [14,16], respectively, and codon 13, predominantly c.38 G > A (G13D) mutations [17]. Here, KRAS is linked to colorectal carcinoma.