A, Axial diffusion-weighted image (b = 1000) demonstrates increased signal intensity in the head of the right caudate nucleus (arrow).B, Axial apparent.

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Presentation transcript:

A, Axial diffusion-weighted image (b = 1000) demonstrates increased signal intensity in the head of the right caudate nucleus (arrow).B, Axial apparent diffusion coefficient map demonstrates decreased apparent diffusion in the head of the right caudate nucl... A, Axial diffusion-weighted image (b = 1000) demonstrates increased signal intensity in the head of the right caudate nucleus (arrow).B, Axial apparent diffusion coefficient map demonstrates decreased apparent diffusion in the head of the right caudate nucleus (arrow).C, Axial contrast-enhanced 3D fast-spoiled gradient (FSPGR) T1-weighted image (flip angle/TR/TE, 13/5/1.2) after intravenous gadolinium demonstrates normal signal intensity and no enhancement in the head of the right caudate nucleus (arrow).D, Axial FLAIR image (TR/TE/TI, 8200/123/2000) demonstrates mild increased signal intensity in the head of the right caudate nucleus (arrow).E, Sagittal contrast-enhanced 3D-FSPGR T1-weighted image (FL/TR/TE, 13/5/1.2) after intravenous gadolinium demonstrates a nonenhancing lesion isointense to CSF in the body of the corpus callosum (arrowhead).F, Coronal fast spin-echo T2-weighted (TR/TE, 4000/103) image demonstrates the corpus callosum lesion with signal intensity isointense to CSF (arrowhead).G, Axial diffusion-weighted (b = 1000) image at the level of the lesion in the corpus callosum demonstrates no restricted diffusion (arrowhead).H, Axial FLAIR image (TR/TE/TI, 8200/123/2000) at the level of the centrum semiovale demonstrates multiple small foci of high signal intensity in the white matter. A.N. Bugnone et al. AJNR Am J Neuroradiol 2006;27:67-69 ©2006 by American Society of Neuroradiology