Harshfield, D L Radiological case of the month. Free intraperitoneal air. [electronic resource] - The Journal of the Arkansas Medical Society Sep 1993 - 175-6 p. digital Publication Type: Case Reports; Journal Article ISSN: 0004-1858 Subjects--Topical Terms: Abdomen, Acute--diagnostic imagingAgedDiagnosis, DifferentialDuodenal Ulcer--diagnostic imagingEndarterectomy, CarotidHumansMalePeptic Ulcer Perforation--diagnostic imagingPneumoperitoneum--diagnostic imagingPostoperative Complications--diagnostic imagingRadiography