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Backwash ileitis

Last revised by Dr Mohamed Saber on 21 Oct 2020

Backwash ileitis is seen in patients with ulcerative colitis (UC), where the entire colon is involved. In such cases the terminal ileum is edematous.

Backwash ileitis extends contiguously backward from the cecum without skip regions. One source estimates it to occur in 6% of patients with UC, and these patients all have moderately to marked active cecal ulcerative colitis.

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Cases and figures

  • Case 1: Ulcerative colitis with backwash ileitis
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