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29-year-old man with mixed malignant oligoastrocytoma.
A–C, Axial T2-weighted (A), contrast-enhanced T1-weighted (B), and rCBV (C) MR images show a lesion in the anterior left mesial temporal lobe that is hyperintense on the T2-weighted image and minimally enhancing on the T1-weighted image. The lesion demonstrates intensely elevated blood volume relative to both gray and white matter (arrow in C).
