Inflammation of the ileum.
- backwash i. involvement of the terminal ileum by the inflammatory and ulcerative changes seen in chronic ulcerative colitis; distinguished from involvement of ileum and proximal colon by regional (granulomatous) enteritis ( e.g., Crohn disease of terminal ileum and proximal colon).
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n.
inflammation of the ileum (small intestine). It may be caused by Crohn's disease, tuberculosis, the bacterium Yersinia, or typhoid or it may occur in association with ulcerative colitis (when it is known as back-wash ileitis).
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il·e·itis (il″e-iґtis) inflammation of the ileum.Medical dictionary. 2011.