Sir DTPA -23/07/2018 LEFT KIDNEY - 91.69 GFR - 84.51 ML RIGHT KIDNEY - 8.31 GFR - 7.66 Obstructed hydronephrosis enlarged left kidney with preserve cortical function Grossly hydronephrosis enlarged practically non- function right kidney DTPA 03/10/2018 RIGHT KIDNEY - 32% GFR - 29.5 ML/ MIN LEFT KIDNEY - 68%. GFR - 62.1 ML/ MIN IMPRESSION- Total normalize GFR 99. 5 ml/min Enlarged hydronephrosis left kidney with preserved cortical function and minimal clearance till delayed image - likely post pyeloplasty pattern. However possibly of persistent PUJ obstruction can't ruled out completely. hydronephrosis right kidney with impaired function and non-obstructive clearance Compared to previous renal dynamic study (date 24-07-2018 done elsewhere, there is improvement in function and clearance of right kidney.