A case of severe hydronephrosis with the renal function successfully recovered from pyeloplasty

Abstract

We experienced a 9-year-old boy who complained of abdominal pain and had severe hydronephrosis in the left kidney. Initially, the patient was scheduled nephrectomy because of his impaired left renal function, however, considering with his left renal parenchymal thickness, pyeloplasty was performed. Then, his renal function had improved. Even in severe hydronephrosis with impaired renal function, we should consider to rescue the kidney if the kidney have considerable parenchymal thickness.