This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vesicoureteral Reflux, Subject name: Pediatrics
[{'content': 'Posterior urethral valve - true A/E - \nSelect and explain. \nA. Palpable bladder, B. Hydronephrosis, C. Painful stress incontinence, D. Recurrent UTI', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e.. Painful stress incontinence Posterior urethral valveo Most common cause of severe obstructive uropathy in children,o 30% of children experienced end stage renal disease/CRFo Dilated prostatic urethra,o Hypertrophy of bladder muscleo Vesicouretic reflux seen in 50% of cases,o Back pressure change:HydronephrosisDistended bladderThin urinary streamRecurent UTI because of urinary stasis", 'role': 'assistant'}]