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Fig 2. Patient 4. Eighteen-year-old man.
A, Axial T2-weighted image. Lesions are seen in both caudate heads and thalami (arrows).
B, Coronal T2-weighted image shows bilateral hippocampal body involvement (arrows).
C, Axial T2-weighted image shows the lesions involving the hippocampal tails (arrows). Note lesions in the caudate heads (white arrowheads).
D, Axial T2-weighted image done 3 months after C shows resolution of the hippocampal tail lesions (arrows). The caudate head lesions have resolved (white arrowheads).
E, CT scan done in the acute stage shows brain swelling and bilateral subtle thalamic lesions (arrows). The hippocampal and basal ganglia involvement was not apparent on this CT scan (not shown in the figure).
F, Follow-up CT scan, done 3 months after E, shows reduction in the edema and resolution of thalamic lesions.
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