RT-qPCR results showed no significant difference in expression of miR-31-5p, miR-625-5p and miR-579 comparing KRAS-mutated CRC and KRAS-wildtype CRC, but all miRNAs were showed overexpressed in CRC compared to NCT (p = 2.5E-08, p = 1.9E06, p = 3.1E05, respectively). This evidence concerns the gene KRAS and colorectal carcinoma.