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FIG 4. Case of a 40-year-old man with a grade II oligodendroglioma.
A and B, Axial contrast-enhanced T1-weighted (A) and FLAIR (B) MR images demonstrate a heterogeneously enhancing (black arrows), infiltrative, cortically based mass (white arrows) in the left medial superior frontal lobe.
C, Relative CBV map of the tumor shows a large focus of increased blood volume (arrow) in the tumor.
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