A case of ureteral triplication associated with ureteropelvic junction obstruction

摘要

Ureteral triplication is one of the rarest malformations of the upper urinary tract. The association of ureteral triplication and obstruction is even rarer. We report a case of ureteral triplication associated with hydronephrosis due to ureteropelvic junction (UPJ) obstruction at the middle pole ureter. To our knowledge, such a malformation has not been described previously.