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Macroscopic and histopathological findings of the penetrating pulmonary injury. (A) Macroscopic findings showed that the whole penetrating wound was resected and that the foreign body was a 3-cm-long rusty nail; (B,C) histopathological findings showed that many red blood cells and neutrophils were observed around the penetrating wound, indicating that hematoma and abscess formed in the pulmonary parenchyma (orange arrows, foreign bodies containing iron).
