[A fibroepithelial polyp of the ureter. A report of 2 new cases].

Primal neoplasias of the ureter are very rare and account for less than 1% of all genitourinary tumours. Only 20% of them are benign, and the fibroepithelial lineage is the more frequent. We contribute two cases of fibroepithelial polyps of the ureter; a brief comment on the etiology of these lesions, the routine diagnosis procedures and current therapeutical options is presented. Due to breakthroughs in radiologic and endoscopic techniques for the upper urinary tract, a more precise pre-operative diagnosis of these lesions has been achieved as well as a more conservative therapy which avoids incorrect and unnecessary nephroureterectomies, so frequent in past times, considering the benign nature of this unusual pathology.