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Neonate, 4 days. Neonate, 4 days. Sagittal SE T1-weighted MR image (600/8/2) shows white matter anomalies as punctate hyperintensities (two marked by long.

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Presentation on theme: "Neonate, 4 days. Neonate, 4 days. Sagittal SE T1-weighted MR image (600/8/2) shows white matter anomalies as punctate hyperintensities (two marked by long."— Presentation transcript:

1 Neonate, 4 days. Neonate, 4 days. Sagittal SE T1-weighted MR image (600/8/2) shows white matter anomalies as punctate hyperintensities (two marked by long arrows) radiating toward ventricles, several subependymal nodules (one marked by curved arrow) in left atrium, and incidental postnatal findings of hyperintense subdural hemorrhage overlying cerebellum and parietal caput succedaneum (not marked).fig 2. Neonate, 7 days.A, Sagittal SE T1-weighted MR image (600/15/2) shows left-hemispheric large transmantle dysplasia (short arrows) as hyperintense area extending from frontoparietal cortex to lateral ventricle; bright subependymal nodules (two marked by curved arrows), located around atrium and temporal horn; and parietal hyperintense linear white matter anomalies (long arrow).B, Axial SE T1-weighted MR image (500/15/2) shows transmantle dysplasia (short arrows) underlying asymmetrically large perisylvian subarachnoid space; hyperintense probable SGCA (>12 mm) is seen at right foramen of Monro (curved arrow) and subependymal nodules at left foramen of Monro and atrium (only atrium marked, long arrow). Yvonne Baron, and A. James Barkovich AJNR Am J Neuroradiol 1999;20: ©1999 by American Society of Neuroradiology

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