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FIG 2. Axial images in an AIDS patient with toxoplasmosis.
A, Axial T1-weighted gadolinium-enhanced MR image. The lesion in the right basal ganglia has an irregular, enhancing rim.
B, DW image (b = 1000 s/mm2). The core of the lesion demonstrates unrestricted diffusion.
C, ADC map of a toxoplasmosis lesion in the right basal ganglia. The outline indicates the ROI within the lesion used for ADC computation. The core of the lesion has a mean ADC that is increased relative to that in normal white matter (ADC ratio, 2.23).
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