Ileal ureter interposition

Last revised by Yuranga Weerakkody on 21 Nov 2015

Ileal ureter interpositions are uncommon urologic reconstructions, using a loop of small bowel to replace a damaged ureter. The concept is similar to the formation of a neobladder from small bowel (e.g. ileal conduit), except one is forming a neo-ureter.

Variants include using colon as an interposition or creating a Roux-en-Y conduit 3-4.

Radiographic features

An ileal ureter interposition can be evaluated with

Some advocate cystography as the best mode of evaluation 1.

Treatment and prognosis

Complications of an ileal ureter interposition include mucus and stone formation in the ileal interposition.

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