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Imaging studies of patient 1. (a) Non-contrast computed tomography showing normal ventricular size. (b) MRI performed 4 days later: T2 and FLAIR: Enlargement of the lateral and third ventricles with periventricular trans ependymal CSF edema. MRI- magnetic resonance imaging, CSF-Cerebro-spinal fluid.
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Brain computerized tomography (CT) demonstrated normal-sized ventricles (Fig. 1a). Because of further deterioration, magnetic resonance imaging (MRI) was performed four days later and demonstrated marked non-obstructive ventricular dilatation without mass effect or hemorrhage (Fig. 1b-c).
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