Lithiasis in the ileal conduit and the continent urinary pouch: two cases and a review.

We present 2 patients who developed stones (6 and 57 g) in the ileal conduit; the first stone was passed and the second required surgical removal; its nidus was a surgical staple. After a review of the literature which includes 25 other cases of stones in ileal conduits, as well as over 20 cases of stones in continent urinary pouches, it is concluded that the use of metallic staples in the construction of the ileal conduit or the continent urinary pouch should be abandoned.