title: "Acquired" Hirschsprung's disease.
mesh_terms: D001466:Barium Sulfate; D001706:Biopsy; D002648:Child; D006801:Humans; D008297:Male; D008531:Megacolon / Q000175:diagnosis*; D009474:Neurons / Q000033:anatomy & histology; D012007:Rectum / Q000166:cytology / Q000473:pathology
chemical_list: D001466:Barium Sulfate