Pediatrics General a17433e7 Posterior urethral valve is diagnosed on micturating cystometrogram by : A Dilatation of posterior urethra B Bladder neck contracture C Vesico-Ureteric reflex D Bladder wall hypertrophy High-Yield Explanation Micturating cystourethrogram findings : Dilation of prostatic urethra. Transverse linear filling defect corresponding to the valves.