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Figure 1: Case 1 - (a) Normal cut surface of the right lung; the histology revealed clusters of tumor cells without; (b) or with admixed fibrin; (c) Pulmonary microvascular tumor embolism (H&E × 400); (d) The tumor cells were positive for cytokeratin 7 (×400)

Figure 1: Case 1 - (a) Normal cut surface of the right lung; the histology revealed clusters of tumor cells without; (b) or with admixed fibrin; (c) Pulmonary microvascular tumor embolism (H&E × 400); (d) The tumor cells were positive for cytokeratin 7 (×400)