Congenital valves of the anterior urethra.
D002648:Child; D003937:Diagnosis, Differential; D004240:Diverticulum / Q000150:complications; D006801:Humans; D008297:Male; D014521:Urethra / Q000002:abnormalities*; D014522:Urethral Diseases / Q000601:surgery; D014525:Urethral Stricture / Q000175:diagnosis; D001745:Urinary Bladder Diseases / Q000150:complications; D014546:Urinary Catheterization; D014567:Urography