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Figure 2. (a and b) MRI representations of a sporadic Creutzfeldt–Jakob disease patient: high signal on both fluid-attenuated inversion recovery image and diffusion-weighted imaging (DWI) (2009–6–16). (c and d) T2–weighted image and DWI image of the same patient in a persistent vegetative state (2011–7–13): serious encephalatrophy with an obvious increase in ventricular volume