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Figure 2


Fig. 1B —51-year-old man with early stage parenchymal actinomycosis. Photograph of wedge resection specimen shows poorly defined nodule (arrows) formed by dense infiltration of many neutrophils and lymphocytes. Note surrounding areas of intraalveolar fibrinous exudate with some inflammatory cell infiltration (stars), which correspond to areas of ground-glass attenuation on CT. (H and E, x1)