fig 3.

Images of a 48-year-old man who developed acute sensorial aphasia 4 days before admission (case 3).

A, Axial view T2-weighted MR image (5200/95/2) shows a concentric lesion and peripheral edema in the left temporoparietal white matter.

B, Axial view unenhanced T1-weighted MR image (620/18/2) shows another lesion with concentric pattern in the left centrum semiovale.

C, Coronal view fluid-attenuated inversion recovery image (15000/170/1; inversion time, 2600 ms) shows a concentric lesion in the left temporoparietal white matter and a multiple sclerosis-like lesion in the right hemisphere.

D, Coronal view fluid-attenuated inversion recovery image (15000/170/1; inversion time, 2600 ms), obtained 1 month after treatment, shows impairment of the concentric pattern and edema of the lesion located in the left temporoparietal region.

E, Coronal fluid-attenuated inversion recovery image (8000/110/2; inversion time, 2500 ms), obtained nearly 4 years after diagnosis, shows that the concentric pattern of the lesion has totally disappeared. Only small gliotic reminiscent lesions are seen.