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Chronic eosinophilic pneumonia. (A) Numerous eosinophils scattered and in clusters on a background of organizing pneumonia and thickened interalveolar septa. (B) Eosinophils filling an alveolar space. (C) Eosinophils together with other chronic inflammatory cells in a background of organizing pneumonia. (D) Clusters of eosinophils in a background of organizing pneumonia. Magnification: H&E × 10 (A), ×40 (B,D), and ×20 (C).
