<prompt> Posterior urethral valve is diagnosed on micturating cystometrogram by-Dilatation of posterior urethraBladder neck contractureVesico-Ureteric reflexBladder wall hyperophy  <response>: Ans. is a i.e., Dilatation of posterior urethra Micturating cystourethrogram findings i Dilation of prostatic urethra ii Transverse linear filling defect corresponding to the valves. 