15 year old male came with fever and chills since 3 days. He also complained of pain during micturition and increased frequency during micturition. On examination the kidneys are bi manually palpable and ballotable. He was diagnosed with Urinary tract infection and given treatment for the same. The patient then mentions previous history of recurrent UTI. A KUB ( X Ray showing Kidney Ureter Bladder) was done to find out the possible etiology of the recurrent UTI. The KUB showed - lower poles of the two kidneys joint at the midline.
Diagnosis and management?