title: Radiological case of the month. Free intraperitoneal air.
authors.affiliation: Radiology Service, Veterans Administration Hospital, Little Rock.
authors.forename: D L
authors.initials: DL
authors.lastname: Harshfield
authors.forename: K G
authors.initials: KG
authors.lastname: Grigg
mesh_terms: D000006:Abdomen, Acute / Q000000981:diagnostic imaging*; D000368:Aged; D003937:Diagnosis, Differential; D004381:Duodenal Ulcer / Q000000981:diagnostic imaging*; D016894:Endarterectomy, Carotid; D006801:Humans; D008297:Male; D010439:Peptic Ulcer Perforation / Q000000981:diagnostic imaging*; D011027:Pneumoperitoneum / Q000000981:diagnostic imaging; D011183:Postoperative Complications / Q000000981:diagnostic imaging*; D011859:Radiography