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FIG 4. Follow-up brain MR images obtained 4 months post diagnosis, after treatment with steroids. The appearance of the brain is markedly improved compared with the appearance at diagnosis (see Fig 2).
A, Coronal fluid-attenuated inversion recovery (8000/112/2700) shows only small amounts of hyperintense signal.
B, Coronal spin-echo gadolinium-enhanced T1-weighted image (600/15).
C and D, Axial spoiled-gradient postcontrast T1-weighted images (9 .2/2.0; flip angle, 20° at the levels of the lateral ventricles [C] and middle cerebellar peduncle [D]) show small amounts of contrast enhancement (arrows).
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