title: The case of the aching back.
mesh_terms: D000230:Adenocarcinoma / Q000150:complications* / Q000000981:diagnostic imaging; D001416:Back Pain / Q000209:etiology*; D001466:Barium Sulfate; D003110:Colonic Neoplasms / Q000150:complications* / Q000000981:diagnostic imaging; D004733:Enema; D006801:Humans; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D014567:Urography
chemical_list: D001466:Barium Sulfate