[Pneumomediastinum simulating acute myocardial infarction, after sternal puncture].
D003937:Diagnosis, Differential; D006801:Humans; D008478:Mediastinal Emphysema / Q000175:diagnosis* / Q000209:etiology; D009203:Myocardial Infarction / Q000175:diagnosis*; D011677:Punctures / Q000009:adverse effects*; D013249:Sternum