El papiloma invertido del tracto urinario superior es una lesión rara y considerada generalmente de comportamiento benigno. Presentamos dos casos de papiloma invertido de uréter, descubiertos tras estudio por infección urinaria alta y hematuria macroscópica respectivamente. Los dos asociaron carcinomas vesicales asincrónicos y sincrónicos durante su seguimiento, lo que nos oblige a realizar un seguimiento estricto.
Inverted papilloma of the upper urinary tract is a rare tumor and generally considered to be a benign. We present two case of benign ureteral inverted papiloma. They were discovered after to study a upper urinary infection and a gross hematuria respectively. Both cases appear to be associated with asynchronous and synchronous bladder carcinoma, so it is very important a strict follow- up.
