title: Pneumomediastinum and subcutaneous emphysema after perforation of the duodenum during gastroscopy.
mesh_terms: D000368:Aged; D000388:Air; D003973:Diatrizoate; D004386:Duodenum / Q000293:injuries*; D004646:Emphysema / Q000209:etiology*; D005773:Gastroscopy / Q000009:adverse effects*; D006801:Humans; D007416:Intestinal Perforation / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D008297:Male; D008478:Mediastinal Emphysema / Q000209:etiology*; D011859:Radiography
chemical_list: D003973:Diatrizoate