17 years old male ,a known case of Rt partial nephrectomy(33% left), developed hydronephrosis of rt kidney as suggested by USG with left kidney normal.
CT scan s/o of rt HN ,rt ureter poorly enhanced in course and caliber
dtpa scan and Cystoscopy, RGP performed
Past h/o juvenile dermatomyositis and was on Prednisolone,azathioprine and HCQs for 3 years,all three medicines stopped 1 year back.Currently on no medication.what is the further management? Need urologist's opinion.