[Acute ureteral obstruction caused by firearm pellet]. / Obstrucción ureteral aguda secundaria a proyectil de arma de fuego.

We report an unusual case of acute ureteral obstruction caused by a shotgun pellet that penetrated the upper collecting system and posteriorly descended into the ureter. The clinical course of the patient is described. To our knowledge, a similar case has not been reported in the literature.