Infective Endocarditis
Image Description
Infective endocarditis involving the aortic valve in a 82 y/o male. The patient presented with acute onset of fever, chills, fatigue, and dyspnea. Blood cultures were positive for staphylococcus aureus. This low power image of a vegetation shows numerous bacterial colonies and neutrophils enmeshed in fibrin. Image copyright: pathorama.ch.