title: Case profile: massive spontaneous gas pyelogram in asymptomatic patient.
mesh_terms: D004927:Escherichia coli Infections / Q000150:complications* / Q000000981:diagnostic imaging; D005740:Gases; D006801:Humans; D008297:Male; D008875:Middle Aged; D014552:Urinary Tract Infections / Q000150:complications* / Q000000981:diagnostic imaging; D014567:Urography
chemical_list: D005740:Gases