Figure 4. Photomicrography of the lung showing in A - Marked alveolar hemorrhage, and pulmonary parenchyma necrosis (HE, 100X); B - Pulmonary necrosis, polymorphonuclear leukocytes infiltration, vasculitis with thrombus and bacterial colonies in the lung parenchyma and around the vessel wall (HE, 200X); C - Bacterial colonies infiltrating the vessel wall (BH, 1000X); D - Bacterial colonies in the pulmonary parenchyma (BH, 1000X).
