A 24-year old man presented with intermittent left flank pain for two years. With urograms this case was diagnosed as unilateral hydronephrosis associated with ureteropelvic obstruction. The cause of the ureteropelvic obstruction was proven as fibrous band surgically and pathologically. He underwent resection of the fibrous band and intubated pyelo-ureterostomy, and was discharged on the 14th postoperative day.
Flank Pain ; Humans ; Hydronephrosis* ; Young Adult