Guidelines of the Italian Society of Videosurgery in Infancy for the minimally invasive treatment of the ureteropelvic-junction obstruction

The hydronephrosis, characterized by the dilation of the renal pelvicalyceal system with possible functional damage to the renal parenchyma, is the most common congenital abnormality of the urinary system detected in utero through the prenatal ultrasound screening. (...)