[2 cases of fibroepithelial polyp of the ureter].

Fibroepithelial polyps of the ureter, a mesodermal benign tumor, are rare. The first case of a fibroepithelial ureteral polyp associated with bilateral complete ureteral duplication and another case associated with bilateral hydronephrosis are reported. The first case suggested a malformative congenital etiology. The two fibroepithelial polyps were treated by conservative surgery.