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FIG 4. Anaplastic astrocytoma. Coronal enhanced T1-weighted image shows a heterogeneous left frontal lesion (A). rCBV map demonstrates a focal area with a high rCBV of 3.11. Histologic section (400X) of this focus is consistent with biopsy-proved anaplastic astrocytoma, and VEGF staining shows strong cellular and endothelial positivity (C).
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