On multivariate analysis, segmental small bowel involvement (OR 0.104 (95% CI0.022–0.50)) and mural stratification (OR 0.02 (95% CI0.003–0.26) were independent predictors of CD. After adding CTE findings to colonoscopic parameters, the accuracy of diagnosing either CD or

ITB increased from 66.7% (70/105) to 95.2% (100/105) (P < 0.001). Conclusion: CTE seems to add unique information to colonoscopy in differential diagnosis between CD and ITB. Correct diagnosis can be made in most patients when combining colonoscopy and CTE findings. Key Word(s): 1. Crohn's BMS-777607 purchase disease; 2. Colonoscopy; 3. tuberculosis; 4. CT enterography; Presenting Author: REN MAO Additional Authors: MIN-HU CHEN PD0332991 cell line Corresponding Author: REN MAO Affiliations: The first affiliated hospital of Sun Yat-sen University Objective: Risk factors of surgery for structuring Crohn’s disease (CD) are not well characterized. Methods: 86 CD patients with strictures detected by endoscopy between 2004 and 2012 were evaluated. The primary outcome was surgery. Results: The median follow-up was 366 days. Factors associated with higher rates of surgery included smoking (hazard ratio (HR) 2.72; 95% confidence interval (CI), 1.35–5.5, P = 0.005),

disease duration at first detection of stricture <3 years (HR 2.73; 95%CI, 1.3–5.75, P = 0.008), stricture located in upper gastrointestinal tract (HR 2.91; 95%CI, 1.07–7.95, P = 0.037), complicated with obstructive symptoms (HR 2.74; 95%CI, 0.33–5.61, P = 0.006) and CDAI > 220 (HR 2.44; 95%CI, 1.18–5.08, P = 0.016). After adjustment for other variables, independent

risk factors predicting surgery was smoking (HR 5.49, 95%CI,2.32–13.02, P = 0.000), disease duration <3 years (HR3.89; 95%CI, 1.6–9.5, P = 0.003), complicated with obstructive symptoms (HR 2.68; 95%CI, 1.24–5.78, P = 0.012) and CDAI > 220 (HR 2.68; 95%CI, 1.22–5.90, P = 0.015). Gender, age at first detection of stricture on endoscopy, location of stricture, ESR, and hs-CRP did not influence outcome. Conclusion: smoking, disease duration at first detection of stricture <3 years, complicated with obstructive symptoms and CDAI > 220 are Flucloronide independent risk factors of surgery for structuring CD. Key Word(s): 1. Crohn’s disease; 2. Endoscopy; 3. stricture; 4. Surgery; Presenting Author: REN MAO Additional Authors: MIN-HU CHEN Corresponding Author: REN MAO Affiliations: The first affiliated hospital of Sun Yat-sen University Objective: Both CD and MG are autoimmune diseases which are complex disorders caused by combination of environmental factors and genetic susceptibility. An association between CD and MG has been previous reported in few cases. Methods: We report a case of CD patients who deveopled MG. Literature review was done to suggest potential association between MG and CD.