title: Toxic megacolon.
mesh_terms: D001466:Barium Sulfate; D002675:Child, Preschool; D003093:Colitis, Ulcerative / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology / Q000628:therapy; D003106:Colon / Q000473:pathology; D005260:Female; D006801:Humans; D011379:Prognosis; D011859:Radiography
chemical_list: D001466:Barium Sulfate