PMC4897422_01
58-year-old man with metronidazole-induced encephalopathy. Axial T2-weighted (A), and FLAIR (B) MR images show markedly increased signal intensity symmetrically involving the dentate nuclei bilaterally without surrounding edema or mass effect.
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fig1
MRI. MR imaging demonstrated strikingly increased signal intensity symmetrically involving the dentate nuclei bilaterally on T2-weighted and fluid-attenuated inversion recovery (FLAIR) images (Fig 1A & B), with isointensity on T1-weighted images and no evidence of enhancement following administration of gadolinium (Fig 2A & B).
58-year-old man with metronidazole-induced encephalopathy. Axial pre- (A), and post-gadolinium (B) T1-weighted MR images show T1 isointensity and no evidence of enhancement following administration of gadolinium.
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MRI. MR imaging demonstrated strikingly increased signal intensity symmetrically involving the dentate nuclei bilaterally on T2-weighted and fluid-attenuated inversion recovery (FLAIR) images (Fig 1A & B), with isointensity on T1-weighted images and no evidence of enhancement following administration of gadolinium (Fig 2A & B).
58-year-old man with metronidazole-induced encephalopathy. Axial isotropic diffusion-weighted MR image shows corresponding high signal intensity within the dentate nuclei.
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Diffusion weighted imaging demonstrated corresponding high signal intensity within the dentate nuclei on the isotropic diffusion images (Fig 3).