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Figure 2: High-grade (IV and III) astrocytomas (a and c) (hematoxylin and eosin ×400) showing dense WT1 immunoexpression, high score (b and d) (immunohistochemistry ×400). Low-grade (II) astrocytoma (e), hematoxylin and eosin ×200 showing loose positivity, low score (f) immunohistochemistry ×400

Figure 2: High-grade (IV and III) astrocytomas (a and c) (hematoxylin and eosin ×400) showing dense <i>WT1</i> immunoexpression, high score (b and d) (immunohistochemistry ×400). Low-grade (II) astrocytoma (e), hematoxylin and eosin ×200 showing loose positivity, low score (f) immunohistochemistry ×400