Fig. 4From: Needle in the heart: a rare case of cardiac tamponade caused by a migrated foreign body and mimicking ST segment elevation myocardial infarctionIntraoperative aspect after gaining access inside the pericardial space: the needle can be seen on the anterior surface of the heart (yellow arrow), being implanted into the cardiac wall and puncturing an epicardial artery, thus causing the intrapericardial bleedingBack to article page