title: Renal abscess with gas formation secondary to acute appendicitis.
mesh_terms: D000038:Abscess / Q000209:etiology*; D000368:Aged; D001064:Appendicitis / Q000150:complications*; D004927:Escherichia coli Infections / Q000209:etiology*; D005260:Female; D005740:Gases; D006801:Humans; D007674:Kidney Diseases / Q000209:etiology*
chemical_list: D005740:Gases