title: Emphysematous cholecystitis: An unusual form of presentation.
mesh_terms: D000368:Aged; D001344:Autopsy; D001659:Biliary Tract / Q000382:microbiology; D002764:Cholecystitis / Q000000981:diagnostic imaging / Q000382:microbiology / Q000473:pathology / Q000601:surgery; D003016:Clostridium perfringens / Q000302:isolation & purification*; D004646:Emphysema / Q000382:microbiology*; D005260:Female; D005740:Gases; D006801:Humans; D011859:Radiography
chemical_list: D005740:Gases