Fig. 2From: Subacute pericardial abscess after aortic valve replacement: a case reportHistological and immunohistochemical analysis. In a there is evidence of chronic inflammation with fibrosis, mesothelial hyperplasia and mixed cellular infiltrate rich in macrophages, neutrophils, eosinophils and plasma cells. b shows the immunohistochemical analysis for Calretinin that highlights mesothelial cells and their hyperplasia. c we can observed the immunohistochemical analysis for CD 68, a specific surface marker of macrophagesBack to article page