Results:Cysto-urethrograms demon strated the filling defect caused by posterior urethra valve as well as the dila ted posterior urethra and the features of a obstructive bladder.

• 结果：12例造影中直接显示后尿道瓣膜负影，全部病例均显示后尿道不同程度扩张及阻塞性膀胱造影征象。