Hirschsprung's disease.
D001003:Anal Canal / Q000503:physiopathology; D002675:Child, Preschool; D003108:Colonic Diseases / Q000175:diagnosis; D003937:Diagnosis, Differential; D004760:Enterocolitis / Q000503:physiopathology; D006627:Hirschsprung Disease / Q000473:pathology / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008365:Manometry; D008722:Methods; D012007:Rectum / Q000473:pathology / Q000503:physiopathology