Fig. 4From: Another cause of cardiac tamponade: ruptured coronary artery aneurysmAneurysmal dilatation of the left main coronary artery, extending to proximal left circumflex coronary artery. A probe was inserted from the left coronary ostium into the left main coronary artery. a View upon opening of the aortic valve. b Closer view of the ruptured CAABack to article page