Infravesical obstruction in boys.
D002675:Child, Preschool; D003558:Cystoscopy; D003937:Diagnosis, Differential; D006801:Humans; D007223:Infant; D008297:Male; D014521:Urethra / Q000000981:diagnostic imaging; D014524:Urethral Obstruction / Q000175:diagnosis* / Q000601:surgery; D001743:Urinary Bladder / Q000000981:diagnostic imaging; D014554:Urination; D014555:Urination Disorders / Q000175:diagnosis; D014567:Urography; D014718:Vesico-Ureteral Reflux / Q000175:diagnosis