title: Radiologic seminar CLXX: extraluminal gas collection in the pelvis due to diverticulitis.
mesh_terms: D000368:Aged; D004239:Diverticulitis, Colonic / Q000000981:diagnostic imaging*; D005740:Gases; D006801:Humans; D007416:Intestinal Perforation / Q000000981:diagnostic imaging*; D008297:Male; D010388:Pelvis / Q000000981:diagnostic imaging*; D011859:Radiography
chemical_list: D005740:Gases