Objective To investigate the expression and clinical significance of iroquois homeobox( IRX5) mRNA in colorectal cancer( CRC). Methods Expressions of IRX5 mRNA were analyzed in 17 cases of inflammatory bowel diseases,48 cases of hyperplastic polyp,54 cases of colorectal adenoma,142 CRC cases and 142 paired adjacent nontumorous tissues by quantitative real-time polymerase chain reaction( RT-q PCR). The correlation between IRX5 mRNA expression and prognosis was analyzed. Results IRX5 mRNA expression was signi...