title: Pneumopericardium and pneumomediastinum: rate complications of pneumoencephalography.
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008478:Mediastinal Emphysema / Q000000981:diagnostic imaging / Q000209:etiology*; D009333:Neck / Q000000981:diagnostic imaging; D011011:Pneumoencephalography / Q000009:adverse effects*; D011026:Pneumopericardium / Q000000981:diagnostic imaging / Q000209:etiology*; D011860:Radiography, Abdominal; D013902:Radiography, Thoracic