Fig. 1

The time course of changes in fluid-attenuated inversion recovery (FLAIR)-image brain MRI of the present patient at admission (a, upper), 7 days later (b), and 10 weeks later (c). In panel (a), middle and lower are diffusion-weighted imaging (DWI) and ADC maps, respectively. The left cingulate lesion initially expanded in size (b), and later became scattered (c). The left corona radiate lesion was initially undetectable (a), gradually appeared as a vaguely delineated area (b), and was later identified as a well-demarcated lesion (c). The limbic lesions initially appeared edematous (a, b), and later shrunk with a high signal intensity on the right side (c)