图示浆液性心包炎的形态。由于炎症较轻，因此未见纤维蛋白渗出。黄*色液体中以及心外膜表面上可见一些黑点，是零散的炎性细胞。浆液性心包炎以分泌液体聚集为特征，大量浆液渗出时就可能引起心包填塞。
This diagram depicts the appearance of a serous pericarditis. The amount of inflammation is minimal, so no exudation of fibrin occurs. The dark stippled dots in the yellow fluid and on the epicardial surface represent scattered inflammatory cells. Serous pericarditis is marked by fluid collection. Rarely, the fluid collection may be large enough to cause tamponade.