Fig. 5

4-year-old girl with history of anorectal anomaly, ultrasound revealed bilateral grade P3 hydronephrosis. a MCUG study reveals dysplastic sacrum, urinary bladder with multiple diverticulae with no evidence of reflux. b MRI sagittal spine shows evidence of caudal regression. c MRU shows bilateral hydroureter and hydronephrosis. d axial high-resolution T2WI shows dilatation of the renal pelvis, central and peripheral calyces. Renal parenchyma exhibits hyperintense signal with poor corticomedullary differentiation. e DTPA dynamic renal scintigraphy reveals retention of activity in both kidneys collecting systems and both ureters with plateau curve pattern (f)