Evaluate shunt/hydrocephalus. History of VA shunt, hydrocephalus, slit ventricular syndrome. Developmental delay, seizure. Nonenhanced head CT:There is no areas of parenchymal hemorrhage, edema or mass effect.There redemonstration of agenesis of corpus callosum and interdigitation of interhemispheric fissure.There is mild dilatation of the supratentorial ventricular system which appears identical to the study from 11 -- 23 -- 2008. There is no evidence of slit like ventricular system.A right-sided ventricular catheter enters from a right posterior parietal, traverses the brain parenchyma and with the tip in the midline at the expected level of the third ventricle.No evidence of hemorrhage or edema in the brain parenchyma. Subtle low-attenuation of periventricular white matter is again identified and may represent periventricular leukomalacia. This findings are noted on prior head CT and MRI studies. There is no evidence of midline shift. Images through posterior fossa are unremarkable.
1.Mildly dilated and shunted supratentorial ventricular system. This findings are identical to prior examination from 2008.2.Agenesis of corpus callosum.3.No evidence of acute intracranial finding.