Idiopathic Inflammatory Bowel Diseases
Idiopathic inflammatory bowel disease (IBD) includes ulcerative colitis (UC), Crohn’s disease (CD), and gastrointestinal (GI) involvement of Behçet’s disease (BD). UC is characterized by continuous and diffuse inflammation of the colon which involves the rectum in almost all cases. In active UC, blurring of vascularity, erythema, granularity, edema, friability, exudates, mucosal bleeding, and ulcers can be observed. CD can involve any site of GI tract and is characterized by transmural inflammation of the bowel. Aphthous erosions and ulcerations can be observed in the early stage, and linearly arranged aphthous erosions/ulcerations are characteristic for CD. With progress of disease, variously shaped ulcers, longitudinal ulcers, and cobblestone appearance develop. CD is more commonly complicated by stricture or perforation of bowel. GI BD is characterized by one or a few large, discrete, and deep ulcers located in the ileocecal area. In this chapter, the clinical and endoscopic features of UC, CD, and GI BD will be presented.
KeywordsInflammatory bowel disease Ulcerative colitis Crohn’s disease Behçet’s disease Ulcer Erosion
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