ileitis
(il‵ē-īt'ĭs 
)
[ileum + -itis]
Inflammation of the ileum. The most common cause is Crohn disease.
SEE: Crohn disease; inflammatory bowel disease.
Symptoms: Patients may have pain in the right lower quadrant of the abdomen, often with diarrhea, nausea, vomiting, weight loss, and fevers. The stool may contain pus, blood, or mucus.
backwash i.Ileitis in which the contents of the colon flow backward into the last segment of the small intestine. It can occur in ulcerative colitis and is a risk factor for colon cancer.