Crohn’s disease is an idiopathic inflammatory granulomatous disease that may involve any area of the gastrointestinal tract from the mouth to the anus. It has a bimodal age of onset, with the larger peak occurring in the second and third decades and a smaller peak of onset in the elderly. Males and females are equally affected, with an annual incidence of about 5 per 100,000 in the United States. Ileocolic involvement is the most common pattern affecting patients with Crohn’s disease (41%), followed by isolated ileal disease (29%) and colonic disease (27%). Three percent of patients with Crohn’s disease have isolated anorectal disease. Up to 80% of patients have some form of bowel resection within 10 years of diagnosis.
KeywordsIleal Pouch Anal Anastomosis Pyoderma Gangrenosum Subtotal Colectomy Ileorectal Anastomosis Aphthous Ulcer
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