Crohn’s disease /krōnz/ [Burrill B. Crohn, American physician, 1884–1983] , a chronic inflammatory bowel disease of unknown origin, usually affecting the ileum, the colon, or another part of the GI tract. Diseased segments may be separated by normal bowel segments, which give it the characteristic “skip lesions.” Also called regional enteritis. Compare ulcerative colitis. See also colitis, ileitis.
