Fig. 1
From: Histopathology reveals concealed aortic valve inflammation
Representative aortic valve histology showing inflammation and degeneration (Hematoxylin–eosin, 100 × magnification). Focuses of neutrophils dominate the inflammatory pattern during acute infective endocarditis (A). Moderate mixed infiltration of lymphocytes and neutrophils with acellular debris and bacteria during subacute endocarditis (B). Chronic endocarditis characterized by chronic infiltration of lymphocytes (C)