1. Polyps of the sigmoid occurring thirty years after bilateral ureterosigmoidostomy for exstrophy of the bladder;Dixon;Surgery,1948
2. Cancer du colon sigmoide dix ans après implantation des uretères d'une vessie exstrophiée;Hammer;J. Urol., Paris,1929
3. Neoplastic obstruction of the ureterosigmoid anastomosis;Amar;J. Urol.,1961
4. Tumor at site of ureterosigmoidostomy nine years previously;Scheinman;J. Urol.,1961