title: Gas-filled appendix: lack of diagnostic specificity.
abstract: Three patients with a gas-filled appendix in association with acute abdominal symptoms are described. In each case the gas-filled appendix was located in the right lower quadrant. None of the patients had appendicitis. It is emphasized that this combination of findings is not neccessarily diagnostic of appendicitis. Clinical evaluation is important in assessing the significance of this sign.
mesh_terms: D000005:Abdomen; D000328:Adult; D001065:Appendix / Q000000981:diagnostic imaging*; D002429:Cecal Diseases / Q000150:complications / Q000000981:diagnostic imaging; D005260:Female; D005740:Gases; D006801:Humans; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000209:etiology; D011859:Radiography
chemical_list: D005740:Gases