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Figure 2. Pathological images of left renal tumor biopsies before (A-D) and after (E and F) treatment. A, B, E, and F: Hematoxylin and eosin staining; C: CD10 immunostaining; D: Paired box 8 immunostaining. Scale bars, A and E: 200 μm; B-D and F: 50 μm.