title: Hypertrophic pyloric stenosis: diagnosis using US.
mesh_terms: D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D006801:Humans; D007223:Infant; D011707:Pyloric Stenosis / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D014463:Ultrasonography