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FIG 3. Axial images in an AIDS patient with lymphoma.
A, Axial T1-weighted gadolinium-enhanced MR image. A lesion with an enhancing rim is present in the left frontal lobe.
B, DW image (b = 1000 s/mm2). The signal intensity of the core of the lesion is similar to that of uninvolved white matter.
C, ADC map of a lymphoma lesion in the left frontal lobe. The outline indicates the ROI within the lesion used for ADC computation. The core of the lesion has a mean ADC that is similar to that of normal white matter (ADC ratio, 1.25).
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