The dull red color to the myocardium as seen below the glistening epicardium to the lower right of the thrombus is consi管腔内见一暗红色新鲜血栓,血栓右下方位于闪亮心外膜之下的心肌呈暗红色与梗死后的颜色一致。
The fibrin often results in the the finding on physical examination of a friction rubas the strands of fibrin on epicard听诊时出现心包摩擦音，这是因为沉积在心外膜和心包的纤维素相互摩擦所致。