Measuring the concordance between endoscopic and histologic inflammation and its effect on IBD-associated dysplasia.

Chronically inflamed colonic mucosa is primed to develop dysplasia identified at surveillance colonoscopy by targeted or random biopsies. We aimed to explore the effect of mucosal inflammation on detection of visible and "invisible" dysplasia and the concordance between the degree of endoscopic and histologic inflammation. This was a 6-year cross-sectional analysis of endoscopic and histologic data from IBD.