title: Perforated duodenal ulcer and pneumomediastinum.
abstract: Two cases of anterior wall perforation of a duodenal ulcer, resulting in pneumomediastinum and pneumoperitoneum, are presented. The literature regarding perforation of the gastrointestinal tract with associated mediastinal emphysema is reviewed.
mesh_terms: D000328:Adult; D000368:Aged; D004381:Duodenal Ulcer / Q000150:complications* / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008478:Mediastinal Emphysema / Q000000981:diagnostic imaging / Q000209:etiology*; D010439:Peptic Ulcer Perforation / Q000150:complications* / Q000000981:diagnostic imaging; D011027:Pneumoperitoneum / Q000000981:diagnostic imaging / Q000209:etiology; D011859:Radiography