Figure 6. Pericardial gross and histopathology. (A) Multiple fragments of thickened, hemorrhagic, and dusky-appearing pericardium are seen in the picture. (B) Edge of granuloma showing Langerhans cells and histiocytes on the left and central necrosis on the right; H&E magnification 400×. (C) Langerhans multinucleated cells with peripherally positioned nuclei in the background of histiocytes and lymphocytes; H&E magnification 600×. (D) Two rounded granulomas composed of conglomerate of histiocytes admixed with lymphocytes. At the edges of granulomas there are several typical Langerhans cells with peripherally positioned nuclei; H&E magnification 40×. (E) Gram stain delineating nodules but with no organisms. (F) Acid fast bacilli stain delineating nodules but with no organisms.