[2 unusual cases of fibrous polyp of the upper urinary tract (reported occasionally)].

Two rare cases (occasional reports) of fibrous polyp of the ureter and kidney pelvis are described. The symptomatology not significant, and the surgical diagnosis and surgical treatment of these lesions is discussed. The ureterorenoscopy is suggested in the follow-up of these neoformation, but when possible the diagnosis and a correct therapeutic approach is recommended.