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. 2023 May 1;66(3):239–246. doi: 10.3340/jkns.2022.0277

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Copyright © 2023 The Korean Neurosurgical Society

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 5. — The natural history of posthemorrhagic ventricular dilation in premature infant (gestational age 29+1 weeks). A : Coronal scan on day 2 shows right grade III and left grade IV germinal matrix and intraventricular hemorrhage (GM-IVH). Echogenic hemorrhage in third ventricle (arrow) and both lateral ventricles. B : Echogenic ependymal lining (arrows) and ventricular dilatation begins 1 week after GM-IVH. C : Coronal scan on month 1 shows progression of ventricular dilatation (arrows). D : Coronal scan on month 2 shows spontaneous improvement in ventricular dilatation without treatment.