Demonstration of the dilated prostatic urethra in posterior urethral valve patients.
D006801:Humans; D007223:Infant; D008297:Male; D011312:Pressure; D014463:Ultrasonography; D014521:Urethra / Q000002:abnormalities*; D014524:Urethral Obstruction / Q000175:diagnosis* / Q000209:etiology