Cytology of Pleural, Pericardial and Peritoneal Cavity Effusions - Negative Effusions


Figures 10-12: Pericardial effusion Benign mesothelial cells.
Pericardiocentesis may yield sheets of benign mesothelial cells similar to those found in other body cavity effusions. The etiology of pericardial effusions is more likely to be infectious (viral), autoimmune, inflammatory (myocardial infarction) or reactive (uremia). Tumor, especially lung, may also invade the pericardium.