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Description: Fig. 2: A) Proteinaceous material in alveoli (Pulmonary edema). (H&E,200X), B) Alveolar spceces and septa infiltrated by neutrophils (Pneumonitis)(H&E,200X), C) Destruction of alveolar septa (Emphysematous change)(H&E,200X), D) Oval to spindled neoplastic cell proliferation in lung tissue (Tumor)(H&E, 200X), E) Aggregates of epithiloid cell (Granuloma)(H&E, 200X), F) Adhered embolus to endothelium. (H&E, 200X)