Fig. 1.

Axial magnetic resonance images obtained on admission showed a high-signal-intensity lesion in the splenium of the corpus callosum on T2-weighted images (A) and diffusion-weighted images (B), with a decreased apparent diffusion coefficient (C). On retrospection, a small area of high signal intensity was observed in the subcortical region of the left frontal lobe on the T2-weighted images (D, arrow) and diffusion-weighted images (E, arrow). Apparent diffusion coefficient map showed no diffusion restriction of the lesion (F).