Abstract
The Stenosis Ureteropelvic Junction (UPJ) is characterized by the obstruction of urine flow from the renal pelvis to the proximal ureter. This pathological condition more prevalent in children is the leading cause of onefrose. The obstruction can be extrinsic (constriction by anomalous vessels) and/or intrinsic. Although abnormalities have been evident in the pattern of innervation in the…