INFO/WWW-LINKS: This chronic inflammatory disorder may affect any part of the gut - especially the terminal ileum. There are ulcerations, fistulae and granulomata. Unlike ulcerative colitis, which is usually located in the colon (except Backwash ileitis), the whole wall of the bowel is affected. Crohn`s disease means predisposing risks to large and small bowel cancer. Radiological appearance of Crohn`s disease are deep and superficial linear ulcerations, cobblestoning, bowel wall thickening, strictures, skip lesions, Pseudopolyposis and fistulae. Differential diagnosis (2)