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FIG 4. A 60-year-old woman with hypoglycemic coma. A, T2-weighted FSE MR image (3,600/102/2) on admission shows subtle symmetrical hyperintensity in both MCPs. B, Isotropic diffusion-weighted MR image (b = 1,000 s/mm2) obtained at the same time shows markedly hyperintense signal intensity in both MCPs. In addition, small symmetrical hyperintensities along the pyramidal tracts are demonstrated (arrows). These hyperintensities disappeared completely on repeated MR imaging performed the next day (not shown).
