PMC5296355_01
(Axial diffusion-weighted imaging): symmetrical abnormal hyperintense signal in the anterior (A) and posterior (B) hippocampal formations indicate irreversible cytotoxic edema from infarction.
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F1
An MRI scan of the brain on admission showed acute ischemic lesions on diffusion-weighted imaging affecting the entire length of hippocampus bilaterally (see Figures 1A,B) as well as the bilateral basal ganglia including the globus pallidus and the anterior putamen (see Figure 2).
(Axial diffusion-weighted imaging): infarctions in the globi pallidi and anterior putamina are indicated by similar symmetrical foci of abnormal hyperintense signal.
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F2
An MRI scan of the brain on admission showed acute ischemic lesions on diffusion-weighted imaging affecting the entire length of hippocampus bilaterally (see Figures 1A,B) as well as the bilateral basal ganglia including the globus pallidus and the anterior putamen (see Figure 2).
(Axial FLAIR): hyperintense signal in the periventricular white matter that increased from prior to the event (A) to the time of the acute event (B).
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F3
However, that prior study did not have restricted diffusion to indicate acute ischemia in the hippocampus or basal ganglia (see Figures 3A,B).
PMC5296355_02