Abstract
                                                                The impacts of the inflammatory process on neoplasia development were observed in many cancer, it has a great role in the etiology, development and progression of invasive colorectal tumors. This study was designed to investigate the BRAF mutation and assist the clinicopathological parameter in some Iraqi bowel inflammation and colorectal cancer patients. Thirty patients were enrolled in this study (15 suffering bowel inflammation and 15 having colorectal cancer). BRAF gene was screened for the presence of mutations using PCR technique and direct sequencing. .The results revealed no BRAF mutation in position 1799 for exon fifteen in both samples of bowel inflammation and colorectal cancer. These results were confirmed previous articles regarding low rate of BRAF gene mutation in Asian countries. These results indicate the possibility of colorectal patients treatment with monoclonal antibodies. Several heterogeneity mutations were found in 3 out of 30 patients (10%) including transition two mutations G>A and one mutation was transversion mutation A>T in different sites as silent mutations                                                            
                                                        Keywords
                                                                                                                                        
                                                                            bowel inflammation                                                                        
                                                                                                                                            
                                                                            BRAFV600E                                                                        
                                                                                                                                            
                                                                            colorectal                                                                        
                                                                                                                                            
                                                                            heterogeneity.                                                                        
                                                                                                                                            
                                                                            Iraq