We report a case of adenocarcinoma that developed in an ileal conduit
18 years after cystectomy for transitional cell carcinoma of the bladd
er. The only presenting sign was gross hematuria. Retrograde ileal loo
pography and endoscopy of the ileal loop were useful in the diagnosis.
To our knowledge adenocarcinoma arising in an ileal conduit after a r
adical procedure for transitional cell carcinoma of the bladder has no
t been reported previously. The literature regarding malignancies that
arise in portions of intestinal segments used as conduits is reviewed
and carcinogenesis is discussed.